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Which email API fits your application?

Choose Bird for agent-managed inboxes and sending infrastructure, then use the shortlist to test the requirements that would make another provider a better fit. These are editorial recommendations from documented capabilities, not measured inbox-placement rankings.

ProviderChoose forCheck before choosing
BirdAgent mailboxes with threads, replies and sender rules, alongside the email sending API.Map message streams and suppressions explicitly when moving an existing application; Bird’s category field is not a stream container.
ResendReact email templates sent through the Node SDK’s react property.Dedicated IPs are a Scale add-on; managed pools scale dynamically and do not expose their IP list.
PostmarkMessage Streams that separate transactional and broadcast traffic, including IP ranges.Send idempotency needs integration safeguards: Postmark documents no idempotency-key feature and recommends response-code handling and webhooks.
MailgunInbound Routes that match incoming messages and forward or store them.Treat the Inbox Placement test key as test deduplication, not a guarantee that an email send is deduplicated.
Amazon SESAn AWS application using sesv2 commands for sending, identities, configuration sets and suppression lists.AWS pricing separates usage rates, plan account fees, attachment data and optional features. A per-email rate is not a monthly allowance.
SendGridSubusers for separate sending, statistics, permissions and credit limits.Inbound Parse posts parsed email and attachments to your URL; plan the conversation storage your application needs.
MailerSendHosted MCP and a CLI for email, SMS, domains, templates and recipient operations.Its dedicated-IP request requires an authenticated domain and at least 500,000 emails a month, followed by an eligibility assessment.
BrevoMCP access to contacts, campaigns, templates, domains and account resources.Batch idempotency applies to the entire messageVersions batch and has a 30-minute lifetime.

How do Bird, AgentMail and Nylas compare for mailbox state?

These products provision hosted inboxes with stored messages and replies. The Nylas comparison covers Agent Accounts, which give an agent its own mailbox without connecting a human inbox.

Mailbox requirementBirdAgentMail and Nylas Agent Accounts
Parsed webhookThe received-mail event includes mailbox, thread and message IDs, sender, recipients and extracted text when available, with a truncation flag.AgentMail: message.received carries Message and Thread objects. HTML and text depend on the incoming message; do not assume both are present. Nylas: message.created reports stored mail. A message.created.truncated event omits the body; fetch the message through the API.
Stored contentRetained messages expose headers, extracted text and attachments. Original bodies expire separately; stored raw MIME is inbound-only.AgentMail: Message reads expose stored content and extracted text or HTML without quoted history, with separate raw-message and attachment retrieval. Nylas: Agent Account mailboxes store messages in folders for API reads. Policy limits govern retention and storage.
Address provisioningCreate a mailbox to claim a generated inbox.ai address, or use your own receiving-enabled domain.AgentMail: Create an inbox on the default domain or a verified custom domain. Omit the username for a generated address. Nylas: Provision a hosted Agent Account through the API or CLI without user OAuth. Use a registered custom domain or a Nylas trial domain.
Thread and reply stateThreads retain participants and unread counts. Reply joins the existing conversation; compose opens a new one.AgentMail: Reply operations keep replies in the same Thread, whose messages can be read through the API. Nylas: reply_to_message_id sets reply headers and places the sent message in the same Agent Account thread.
Sender rulesReceive policies and sender rules filter envelope senders. Blocked mail is stored quietly outside the inbox; the drop policy discards it.AgentMail: Allow and block lists filter sends, incoming mail and incoming replies at organization, pod or inbox scope. The narrowest matching scope wins. Nylas: Workspace rules control inbound and outbound mail separately. An inbound block rejects mail during SMTP, before storage.
Agent operationsCLI and MCP examples cover mailbox creation, thread reads and replies. Mailbox management also exposes receive policies and sender rules.AgentMail: Hosted MCP tools create inboxes, read threads, send messages and reply to messages. Nylas: Agent Account CLI and API examples cover account creation, sending and reading replies. The grant ID identifies the account on subsequent calls.

What gives Bird the advantage?

Bird’s advantages here are control of sending infrastructure and the resources an agent can manage. The individual comparisons state each rival’s documented capabilities beside these same axes.

CapabilityBird’s advantageWhat to evaluate
Deliverability heritageBird acquired SparkPost in 2021; its network carries about 40% of the world’s commercial email.Bird’s Momentum adjusts traffic per mailbox provider. Dedicated IPs and pools support automatic warm-up and shared-pool overflow.
Agent toolingBird’s hosted MCP server at mcp.bird.com exposes 354 tools. The bird CLI sends and inspects email and manages domains, templates and webhooks.Run the operations your agent needs, including failure handling. Bird gives agents JSON output and semantic exit codes. Compare the rival’s actual command and tool surface below.
MailboxesBird’s agent mailboxes provide addressable inboxes, threads, replies and sender rules managed through code.Decide whether you need a parsed webhook, stored received messages or an agent-managed conversation. Test receiving, reply threading and sender rules as separate requirements.

Where is each provider a good fit?

Use the documented capability and the trade-off together. Each detailed comparison includes the sending stack, agent tooling, mailboxes, migration work and the same published-price data.

Bird

Sending infrastructure and agent inboxes Bird operates its sending infrastructure and develops MTA software, including PowerMTA for self-hosted sending. Its agent mailboxes make inboxes, threads, replies and sender rules resources your application manages. Map the existing provider’s traffic separation and suppression rules explicitly when migrating.

SendGrid

Subusers and established sending workflows SendGrid subusers separate sending and account controls. Its CLI exposes email:send and email:set. Inbound Parse hands parsed email to your application; inventory that handler and its stored state before moving.

Amazon SES

Email inside an AWS application AWS CLI sesv2 manages sending and SES resources. The AWS MCP Server connects agents with OAuth or SigV4. Receiving rules can deliver to S3 or SNS; choose the AWS services that will process and retain incoming mail.

Mailgun

Inbound message routing Mailgun Routes filter incoming email and apply forwarding or storage actions. Its local MCP server covers sending, stored messages, domains, routes, templates and deliverability operations. The publisher does not offer a hosted version of that server, so include its operation in your deployment.

Postmark

P

Transactional and broadcast separation Postmark Message Streams keep transactional and broadcast traffic on separate infrastructure. Its MCP server covers sending, templates, search and diagnostics; its CLI sends email and manages templates. The inbound webhook delivers parsed message content and attachments for your application to process.

MailerSend

Email operations through CLI and MCP MailerSend’s hosted MCP server sends email and SMS and manages domains, templates and webhooks. Its CLI also manages recipients and suppressions. Preserve the temporary nature of On Hold suppressions: a temporary soft-bounce hold should not become a permanent block in a migration.

Brevo

Contact and campaign operations Brevo’s MCP server manages contacts, campaigns, templates, domains and account resources. Its CLI creates OAuth apps, scaffolds code and runs a local test server. Keep batch idempotency scoped to the whole batch when designing retries.

Resend

React templates and receiving Resend’s Node SDK accepts a React template through the react property. Its receiving API exposes content, attachments and threaded replies. Hosted MCP and a CLI cover sending, receiving and account resources; test those against the agent workflow you plan to run.

How do the published email plans compare?

Open a provider to see Bird’s full live ladder, the publisher’s recorded plans and the computed pricing verdict. Every rival amount links to its source and shows the date it was checked.

Bird / Amazon SES

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Not comparable. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdAmazon SES
Free1,000

$0 / month (USD)

€0 / month (EUR)

4 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Matching volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Matching volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Matching volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

4 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Nearest published volume

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Nearest published volume

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Amazon SES: Published plans

À la carte outbound email: $0.10 / 1,000 emails

1,000 emails

No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.

as published

Essentials: $0.16 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Pro: $0.22 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Enterprise: $0.23 per 1,000 emails

1,000 emails

Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.

as published

Bird / Brevo

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Bird. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdBrevo
Free1,000

$0 / month (USD)

€0 / month (EUR)

2 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Starter: €7.00/month

5,000 emails

Monthly billing; optional add-ons excluded.

as published

Nearest published volume

Standard: €15.00/month

5,000 emails

Monthly billing; optional add-ons excluded.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: €47.00/month

50,000 emails

Monthly billing; optional add-ons excluded.

as published

Matching volume

Standard: €79.00/month

50,000 emails

Monthly billing; optional add-ons excluded.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: €70.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Matching volume

Standard: €129.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: €70.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Matching volume

Standard: €129.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Standard: €229.00/month

250,000 emails

Monthly billing; optional add-ons excluded.

as published

Matching volume

Professional: €599.00/month

250,000 emails

Monthly billing; optional add-ons excluded.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Standard: €399.00/month

500,000 emails

Monthly billing; optional add-ons excluded.

as published

Matching volume

Professional: €699.00/month

500,000 emails

Monthly billing; optional add-ons excluded.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

Matching volume

Professional: €999.00/month

1,000,000 emails

Monthly billing; optional add-ons excluded.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

Nearest published volume

Professional: €1,713.00/month

3,000,000 emails

Monthly billing; optional add-ons excluded.

as published

Brevo: Published plans

Free: €0.00/month

Daily allowance: 300 emails a day.

as published

Starter: €7.00/month

5,000 emails

Monthly billing; optional add-ons excluded.

as published

Starter: €47.00/month

50,000 emails

Monthly billing; optional add-ons excluded.

as published

Starter: €70.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Standard: €15.00/month

5,000 emails

Monthly billing; optional add-ons excluded.

as published

Standard: €79.00/month

50,000 emails

Monthly billing; optional add-ons excluded.

as published

Standard: €129.00/month

100,000 emails

Monthly billing; optional add-ons excluded.

as published

Standard: €229.00/month

250,000 emails

Monthly billing; optional add-ons excluded.

as published

Standard: €399.00/month

500,000 emails

Monthly billing; optional add-ons excluded.

as published

Professional: €499.00/month

150,000 emails

Monthly billing; optional add-ons excluded.

as published

Professional: €599.00/month

250,000 emails

Monthly billing; optional add-ons excluded.

as published

Professional: €699.00/month

500,000 emails

Monthly billing; optional add-ons excluded.

as published

Professional: €999.00/month

1,000,000 emails

Monthly billing; optional add-ons excluded.

as published

Professional: €1,713.00/month

3,000,000 emails

Monthly billing; optional add-ons excluded.

as published

Enterprise: Custom price

Custom volume and pricing.

as published

Bird / MailerSend

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Even. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdMailerSend
Free1,000

$0 / month (USD)

€0 / month (EUR)

Nearest published volume

Free: $0

500 emails

Monthly billing.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $35.00 /month

50,000 emails

Monthly billing.

as published

Matching volume

Professional: $110.00 /month

50,000 emails

Monthly billing.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $68.00 /month

100,000 emails

Monthly billing.

as published

Matching volume

Professional: $140.00 /month

100,000 emails

Monthly billing.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $68.00 /month

100,000 emails

Monthly billing.

as published

Matching volume

Professional: $140.00 /month

100,000 emails

Monthly billing.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $162.50 /month

250,000 emails

Monthly billing.

as published

Matching volume

Professional: $275.00 /month

250,000 emails

Monthly billing.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $325.00 /month

500,000 emails

Monthly billing.

as published

Matching volume

Professional: $525.00 /month

500,000 emails

Monthly billing.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Starter: $600.00 /month

1,000,000 emails

Monthly billing.

as published

Matching volume

Professional: $1,000.00 /month

1,000,000 emails

Monthly billing.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

Nearest published volume

Professional: $1,600.00 /month

2,000,000 emails

Monthly billing.

as published

MailerSend: Published plans

Free: $0

500 emails

Monthly billing.

as published

Hobby: $7.00 /month

5,000 emails

Monthly billing.

as published

Starter: $35.00 /month

50,000 emails

Monthly billing.

as published

Starter: $68.00 /month

100,000 emails

Monthly billing.

as published

Starter: $162.50 /month

250,000 emails

Monthly billing.

as published

Starter: $325.00 /month

500,000 emails

Monthly billing.

as published

Starter: $600.00 /month

1,000,000 emails

Monthly billing.

as published

Professional: $110.00 /month

50,000 emails

Monthly billing.

as published

Professional: $140.00 /month

100,000 emails

Monthly billing.

as published

Professional: $275.00 /month

250,000 emails

Monthly billing.

as published

Professional: $525.00 /month

500,000 emails

Monthly billing.

as published

Professional: $1,000.00 /month

1,000,000 emails

Monthly billing.

as published

Professional: $1,600.00 /month

2,000,000 emails

Monthly billing.

as published

Enterprise: contact us

Custom enterprise requirements and pricing.

as published

Bird / Mailgun

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Bird. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdMailgun
Free1,000

$0 / month (USD)

€0 / month (EUR)

Nearest published volume

Basic: Starting at $15/mo

10,000 emails

Monthly billing; starting price.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

Matching volume

Foundation: $35/mo

50,000 emails

Monthly billing after the free trial.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Foundation: $75/mo

100,000 emails

Monthly billing after the free trial.

as published

Matching volume

Scale: $90/mo

100,000 emails

Monthly billing after the free trial.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Foundation: $75/mo

100,000 emails

Monthly billing after the free trial.

as published

Matching volume

Scale: $90/mo

100,000 emails

Monthly billing after the free trial.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

Matching volume

Scale: $215/mo

250,000 emails

Monthly billing after the free trial.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

Matching volume

Scale: $400/mo

500,000 emails

Monthly billing after the free trial.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

Matching volume

Scale: $700/mo

1,000,000 emails

Monthly billing after the free trial.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

Matching volume

Scale: $1,250/mo

2,500,000 emails

Monthly billing after the free trial.

as published

Mailgun: Published plans

Free: $0/mo

Daily allowance: 100 emails a day.

as published

Basic: Starting at $15/mo

10,000 emails

Monthly billing; starting price.

as published

Foundation: $35/mo

50,000 emails

Monthly billing after the free trial.

as published

Foundation: $75/mo

100,000 emails

Monthly billing after the free trial.

as published

Scale: $90/mo

100,000 emails

Monthly billing after the free trial.

as published

Scale: $215/mo

250,000 emails

Monthly billing after the free trial.

as published

Scale: $400/mo

500,000 emails

Monthly billing after the free trial.

as published

Scale: $700/mo

1,000,000 emails

Monthly billing after the free trial.

as published

Scale: $1,250/mo

2,500,000 emails

Monthly billing after the free trial.

as published

Enterprise services: Request a quote

Custom features and pricing.

as published

Bird / Postmark

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Bird. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdPostmark
Free1,000

$0 / month (USD)

€0 / month (EUR)

Nearest published volume

Free: $0.00/mo

100 emails

Monthly allowance; no overages.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

3 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Basic: $55.00/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Matching volume

Pro: $60.50/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Matching volume

Platform: $66.00/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $115.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $126.50/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $138.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $115.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $126.50/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $138.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $245.00/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $269.50/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $294.00/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $455.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $500.50/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $546.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $455.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $500.50/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $546.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

3 nearest published options

Expand to compare every option and its billing terms.

Nearest published volume

Basic: $775.00/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Pro: $852.50/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Nearest published volume

Platform: $930.00/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Postmark: Published plans

Free: $0.00/mo

100 emails

Monthly allowance; no overages.

as published

Basic: $15.00/mo

10,000 emails

Monthly billing; volume covers emails sent and received.

as published

Basic: $55.00/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Basic: $115.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Basic: $245.00/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Basic: $455.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Basic: $775.00/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $16.50/mo

10,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $60.50/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $126.50/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $269.50/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $500.50/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Pro: $852.50/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $18.00/mo

10,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $66.00/mo

50,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $138.00/mo

125,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $294.00/mo

300,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $546.00/mo

700,000 emails

Monthly billing; volume covers emails sent and received.

as published

Platform: $930.00/mo

1,500,000 emails

Monthly billing; volume covers emails sent and received.

as published

Bird / Resend

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Bird. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdResend
Free1,000

$0 / month (USD)

€0 / month (EUR)

Nearest published volume

Free: $0 / mo

3,000 emails

Monthly allowance; limited to 100 emails a day.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

Matching volume

Pro: $20 / mo

50,000 emails

Monthly billing.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Pro: $35 / mo

100,000 emails

Monthly billing.

as published

Matching volume

Scale: $90 / mo

100,000 emails

Monthly billing.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

2 plans at this volume

Expand to compare every option and its billing terms.

Matching volume

Pro: $35 / mo

100,000 emails

Monthly billing.

as published

Matching volume

Scale: $90 / mo

100,000 emails

Monthly billing.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

Nearest published volume

Scale: $160 / mo

200,000 emails

Monthly billing.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

Matching volume

Scale: $350 / mo

500,000 emails

Monthly billing.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

Matching volume

Scale: $650 / mo

1,000,000 emails

Monthly billing.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

Matching volume

Scale: $1,150 / mo

2,500,000 emails

Monthly billing.

as published

Resend: Published plans

Free: $0 / mo

3,000 emails

Monthly allowance; limited to 100 emails a day.

as published

Pro: $20 / mo

50,000 emails

Monthly billing.

as published

Pro: $35 / mo

100,000 emails

Monthly billing.

as published

Scale: $90 / mo

100,000 emails

Monthly billing.

as published

Scale: $160 / mo

200,000 emails

Monthly billing.

as published

Scale: $350 / mo

500,000 emails

Monthly billing.

as published

Scale: $650 / mo

1,000,000 emails

Monthly billing.

as published

Scale: $1,150 / mo

2,500,000 emails

Monthly billing.

as published

Enterprise: Contact us

Custom usage and pricing.

as published

Bird / SendGrid

Bird’s full monthly ladder is shown below. Nearest-volume plans are labelled and are not quotes for Bird’s volume. Check billing terms, features and overages.

Pricing verdict: Not comparable. The verdict compares the lowest published monthly amount at each exact volume and currency; daily-only allowances, annual commitments, usage rates, starting prices and custom quotes are not compared.

Bird monthly volume ladder and published provider plans
Bird tierEmails per monthBirdSendGrid
Free1,000

$0 / month (USD)

€0 / month (EUR)

Nearest published volume

Essentials: Starting $19.95/mo

50,000 emails

Monthly billing; published volume range is 50,000 to 100,000 emails. Taxes and overages may apply.

as published

Startup50,000

$15 / month (USD)

€15 / month (EUR)

Matching volume

Essentials: Starting $19.95/mo

50,000 emails

Monthly billing; published volume range is 50,000 to 100,000 emails. Taxes and overages may apply.

as published

Startup100,000

$30 / month (USD)

€27.5 / month (EUR)

Matching volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Growth100,000

$80 / month (USD)

€72.5 / month (EUR)

Matching volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Growth250,000

$175 / month (USD)

€160 / month (EUR)

Nearest published volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Growth500,000

$295 / month (USD)

€270 / month (EUR)

Nearest published volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Growth1,000,000

$530 / month (USD)

€480 / month (EUR)

Nearest published volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Growth2,500,000

$1,039 / month (USD)

€950 / month (EUR)

Nearest published volume

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

SendGrid: Published plans

Free Trial: $0/mo for 60 days

Trial limited to 100 emails a day for 60 days.

as published

Essentials: Starting $19.95/mo

50,000 emails

Monthly billing; published volume range is 50,000 to 100,000 emails. Taxes and overages may apply.

as published

Pro: Starting at $89.95/mo

100,000 emails

Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.

as published

Premier: Custom pricing

Custom volume and features.

as published

How should you choose an email API?

What does this shortlist measure?
It compares documented sending controls, receiving workflows, CLI and MCP operations, integration constraints and published plan amounts. Workload recommendations are editorial judgments. The page does not rank providers by measured inbox placement or claim that a delivery event proves inbox placement.
Which email API is cheapest?
The pricing verdict compares the minimum published monthly amount at each exact matching volume and currency. Bird wins when its minimum is lower at every match; the rival wins when higher at every match; mixed or equal results are even. Usage rates, qualified starting prices and unmatched currencies do not produce a verdict.
What should a trial integration test?
Test one transactional send, a timeout and retry, a bounce or complaint, and an incoming reply. If an agent will run the account, also test the CLI or MCP operations it needs. Check stored content, conversation state and suppression handling before moving production traffic.
Does a provider comparison replace a migration plan?
No. Inventory sending domains, templates, webhooks, suppression rules and inbound handlers. Map each resource to the destination API, test with representative traffic, and keep your application’s record of completed sends so retries do not duplicate business messages.

Talk to our email team

Test the fit for your email program.

Compare the sending workflow, delivery controls and published plans against your requirements. Then try the integration or plan a migration with our team.

Create your account and test your integration before deciding how to move production traffic.

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