Find clear answers about sending, deliverability, and email campaigns.

Envía a direcciones sandbox documentadas como delivered@messagebird.dev, bounce@messagebird.dev o complaint@messagebird.dev. Estas ejercitan resultados y webhooks a través del pipeline normal. Limita la audiencia de ensayo a direcciones sandbox; las direcciones reales en el mismo envío reciben correo real.

El dominio de onboarding permite un primer envío bajo sus restricciones documentadas, y las direcciones sandbox permiten hacer pruebas. Verifica tu propio dominio de envío para envíos regulares. Consulta los límites actuales de tu espacio de trabajo en lugar de basarte en una asignación fija de plan en esta página.

Usa la guía de inicio rápido de primer correo para una integración con API, la guía de SMTP para una aplicación SMTP existente, Email marketing para campañas, o la guía de inicio rápido de buzón de agente para conversaciones. Cada ruta enlaza a la configuración y documentación correspondientes.

You can start on the Free plan with its included sending allowance to test integration and delivery. Paid Email plans add a monthly deposit directly to your shared Bird balance, and each email you send is billed from that balance at your plan's published per-email rate without expiring message bundles. Visit the pricing page to compare current deposits, rates, and plan allowances.

If you downgrade your plan, any custom handles you have already claimed continue receiving mail without interruption, and you can claim additional handles once your usage is back within your plan's limit. Mailboxes created on your own verified domain count toward your total mailbox quota without using any of your custom-handle allowance.

Dedicated IPs are available as a monthly add-on on eligible paid Email plans. You can check the current monthly price per IP and the maximum number of dedicated IPs included in each plan tier on the Email pricing page before ordering from the dashboard.

Your sending throughput and monthly allowances depend on your Email plan, with full tier details listed on the Email pricing page and any custom enterprise limits applied automatically. You can check your active rate limits and remaining quota through the API or response headers, and use the returned wait time to pace retries when requests are throttled. API and SMTP traffic share your sending throughput, while batch requests and campaign broadcasts follow their own request limits.

A complete email can be up to 20 MB, including the HTML body, plain text, headers, and encoded attachments. Because attachment encoding adds overhead, keep raw attachment files under 15 MB so the assembled message stays within the limit, and keep in mind that some recipient mail servers enforce smaller size caps.

When content storage is enabled, you can inspect sent message bodies and attachments for up to 30 days. For Agent Mailboxes, parsed headers, extracted text, and attachments stay available for 30, 90, or 365 days depending on the retention tier selected on your plan, while raw MIME payloads are retained for 30 days.

Scope the agent's API key to the specific permissions its workflow requires, and configure mailbox receive rules so untrusted senders do not trigger agent runs. For sensitive outbound communication, have the agent save a draft first so a human or policy check can verify the recipients, sender address, and body before sending.

Sí, ambos se envían a través de la misma API de envío. La única diferencia es el campo de categoría, que determina cómo se aplican las supresiones y las cancelaciones de suscripción. Elige transactional para restablecimiento de contraseñas y recibos, y marketing para campañas.

Envía un encabezado Idempotency-Key con cada envío lógico. Si la primera solicitud tuvo éxito pero nunca viste la respuesta, reproducirla con la misma clave te devuelve el resultado original con un encabezado Idempotency-Replay, en lugar de enviar el correo dos veces.

Establece scheduled_at en cualquier momento entre 30 segundos y 30 días en el futuro. El envío se devuelve como aceptado de inmediato y permanece programado hasta que se ejecute, por lo que puedes cancelarlo en cualquier momento antes de eso.

Sí, como base64 en el array de attachments. Para mostrar una imagen en línea, dale un content_id y referéncialo desde tu HTML con cid:. Mantén los archivos sin codificar en 15 MB o menos para que el mensaje quepa dentro del límite de 20 MB una vez codificado, y ten en cuenta que los tipos de contenido ejecutable y de script se rechazan antes del envío.

Yes. If your application or third-party software already sends email over SMTP, you can switch to Bird without rewriting code by updating the SMTP host, port, and credentials. Verify your sending domain in the dashboard and authenticate with an API key that has email sending permissions.

Connect on port 465 for implicit TLS encryption, or use ports 587 and 2525 with STARTTLS, including port 2525 for cloud environments that block standard mail ports. Point your client to the regional SMTP host that matches your API key; unencrypted submission on port 25 is disabled.

Use SMTP when you want a drop-in relay for existing services, CRMs, or frameworks that already assemble MIME messages. Choose the HTTP API when you want to send with stored templates, schedule deliveries, or pass structured JSON fields from your application code. Both methods share your verified domains, IP pools, suppression lists, and analytics.

SMTP messages are billed at the same published per-email rates as HTTP API sends under your Email plan, with no extra protocol fee. Check the Email pricing page for current plan rates, or talk with our team if you are migrating a high-volume SMTP workload.

Contacts live in your workspace and can store an email address, a phone number, your own external user ID, and custom attributes. Audiences reference those shared contact records, so when a customer updates their email address or profile details, the change carries across the audiences they belong to.

Upload a CSV, TSV, or Excel file in the dashboard, map your columns to contact attributes, and assign the imported contacts straight to an audience. To keep lists synchronized from your application, you can create or update up to 1,000 contacts per request through the API or CLI.

Audiences use explicit membership that you manage by adding or removing contacts through file imports, the dashboard, or the API. When a scheduled broadcast starts sending, Bird resolves the audience's current members so recent additions and removals take effect automatically.

You can define text, number, boolean, and date-time attributes with optional fallback values for missing data. Those attributes plug directly into your email templates so you can personalize subject lines and body copy for each recipient.

Select a saved audience when setting up your broadcast. When sending starts, Bird resolves the current audience members, filters out suppressed or unsubscribed addresses, and personalizes the template with each contact's saved attributes.

Yes. You can send a broadcast immediately or schedule it up to a year in advance, and you can edit or reschedule the campaign before delivery begins. If you cancel a broadcast that is scheduled or in progress, Bird stops delivery to any remaining recipients.

Broadcasts send a campaign to a saved audience up to a year ahead. For individual transactional emails, the sending API lets you schedule a message from 30 seconds to 30 days in advance. When you schedule a transactional send, Bird locks in the template version, language, and personalization values at request time so later edits do not alter your queued message.

Yes. Create a test audience populated with Bird sandbox addresses to simulate deliveries, bounces, and spam complaints without sending mail to real inboxes. Sandbox sends trigger your webhooks and appear in your analytics so you can verify your webhook and analytics integration before launching a live campaign, and they count toward your sending allowance.

Marketing broadcasts and transactional emails share your verified domains, templates, and delivery infrastructure, so you do not have to sync templates or suppression lists across two separate providers. Marketers can compose and schedule broadcasts in the dashboard, and developers can automate audience updates and campaign setup through the API, CLI, or MCP tools.

When you send a marketing broadcast or tag an API send as marketing, Bird includes one-click list-unsubscribe headers and an unsubscribe link for Gmail and Yahoo compliance. When a recipient opts out, Bird records their preference and filters them out of future marketing sends while still allowing transactional receipts and account alerts through.

Each broadcast report tracks delivered messages, human opens with automated privacy proxy prefetches filtered out, link clicks, bounces, and spam complaints. To tie campaigns back to signups or purchases, include UTM or custom link parameters and measure conversions in your product or analytics tool.

Use broadcasts in the dashboard to send newsletters, product announcements, and scheduled promotions to your saved audiences. For event-driven lifecycle emails such as welcome series, onboarding nudges, or cart reminders, trigger templates directly from your application backend using the Email API.

No. You can write and preview HTML templates in the dashboard code editor, or manage template files from your repository using the API, CLI, and MCP tools. If your team builds templates with React Email, you can compile them to HTML with Bird personalization placeholders intact and sync the output to the same drafts and published versions visible in the dashboard.

Templates use Liquid placeholders to merge dynamic data into subject lines, preview text, and message bodies. When you send a broadcast, Bird populates contact placeholders automatically from each recipient's saved profile attributes and fallback values. When you send transactional emails through the API, you can pass custom parameters such as order numbers or line items and use Liquid conditionals and loops to format the message.

Yes. Edits are saved to a working draft while live traffic continues using your currently published version. When you publish a change, Bird creates a version snapshot, and you can roll back to any earlier snapshot with one click if you spot a mistake, without affecting messages that have already been accepted for delivery.

Yes. A single template can store localized subject lines, preview text, and HTML bodies for multiple languages alongside a default fallback language. You can choose whether sends requesting an untranslated locale fall back to your default language or return an error, and preview each locale with sample recipient data before publishing.

Generamos los registros por ti: un registro TXT de DKIM para firmar tu correo, un CNAME de return-path que alinea SPF (no se requiere registro SPF en el apex), y un registro TXT de DMARC. Un CNAME de seguimiento para enlaces de apertura y clic con tu marca es opcional. Agrega el dominio, pega los registros en tu proveedor de DNS y pulsa verificar: la mayoría de las verificaciones se resuelven en minutos tras la propagación de DNS, aunque ocasionalmente puede tardar más.

DMARC indica a los servidores receptores qué hacer con el correo que no pasa la alineación DKIM o SPF, y dónde enviar los informes agregados que muestran quién está enviando como tu dominio. Exigimos un registro DMARC antes de que un dominio pueda enviar, y recomendamos empezar con p=none, que monitorea sin afectar la entrega. Una vez que hayas confirmado que todas las fuentes legítimas están alineadas, ajusta la política a p=quarantine o p=reject. Si ya publicas DMARC en tu dominio o en un dominio padre, lo usamos tal cual. Los principales proveedores de bandeja de entrada ahora esperan que los remitentes masivos publiquen una política, así que tener una es cada vez más parte de llegar a la bandeja de entrada a gran volumen.

Sí, ambas cosas, y recomendamos un subdominio dedicado, ya que aísla tu reputación de email del correo corporativo. También puedes usar dominios separados para correo transaccional y de marketing, o uno por marca, cada uno con su propia autenticación y reputación.

Considera una IP dedicada cuando envíes un volumen constante y necesites control sobre la reputación de tu propia IP. Un remitente de bajo volumen o irregular puede beneficiarse más del pool compartido. Bird calienta una nueva IP dedicada automáticamente en aproximadamente 30 días, con el excedente enrutado a través de infraestructura compartida durante la rampa. Revisa tu patrón de envío con un especialista en correo electrónico antes de decidir.

Sí. Agrupa las IP en pools y enruta cada tipo de tráfico a su propio pool. Esto separa las IP que transportan tus flujos de campaña y transaccionales. La autenticación, la reputación del dominio y la interacción del destinatario siguen siendo importantes para ambos.

Bird handles SPF, DKIM, and DMARC authentication, dedicated IP pools with automated warmup, bounce and complaint suppressions, unsubscribe preferences, and real-time delivery analytics. You control list acquisition, message content, and sending cadence, and you can pair those controls with Inbox Insights to monitor inbox placement across providers.

Start in the dashboard or analytics API by breaking down bounce reasons and spam complaints by sending domain and mailbox provider, such as Gmail or Yahoo. You can inspect individual delivery attempts in the email log to see exact server responses, and use Inbox Insights to run seed tests or check whether providers are routing your mail to spam.

No. Health statuses like Healthy, Watching, and Throttled give you an early warning when bounce or complaint rates rise, without automatically pausing your traffic or changing your rate limits. Your team stays in control of whether to pause a broadcast or clean an audience while investigating.

When an address hard bounces, Bird adds it to your suppression list and blocks future sends to protect your sender reputation. Spam complaints and unsubscribes automatically stop future marketing emails to that recipient while allowing critical transactional messages, such as password resets or receipts, to reach valid addresses.

Los rebotes duros crean supresiones para todo el correo; las quejas crean supresiones para el correo no transaccional. Las supresiones manuales bloquean todas las categorías. Los rebotes suaves y los aplazamientos no crean supresiones permanentes de destinatarios.

Una cancelación de suscripción registra la preferencia del destinatario en la pestaña Preferencias. Es independiente de la lista de supresión. Ambas se comprueban al decidir si se entrega, y eliminar un contacto no borra su exclusión.

Puedes eliminar una supresión desde el panel o API después de investigar su causa. Eliminarla no elimina otros registros de bloqueo ni preferencias de exclusión. La dirección sandbox suppressed@messagebird.dev te permite probar un destinatario rechazado sin modificar tu lista.

Usa Email Lookup con una clave API con permisos de búsqueda. Envía una dirección y consulta su resultado, nivel de confianza de entrega, indicadores de riesgo y cualquier sugerencia de corrección tipográfica. El panel, los SDKs y CLI ofrecen formas de probar la misma búsqueda.

Los resultados documentados son valid, neutral, risky, undeliverable y typo. Trata result como un vocabulario abierto y gestiona valores futuros usando delivery confidence. El booleano valid es la evaluación de validez del proveedor; léelo junto con result y confidence, ya que no garantiza la entrega.

Ofrece la sugerencia tipográfica para que la persona la confirme; nunca reemplaces su dirección en silencio. Neutral significa que no se pudo confirmar el buzón en ningún sentido. Combina el resultado y el nivel de confianza con tu política de consentimiento y envío.

No. Una búsqueda ayuda a evaluar la calidad de la dirección en ese momento. No establece consentimiento, no elimina preferencias de exclusión ni garantiza la llegada a la bandeja de entrada. Sigue respetando los registros de supresión y preferencias.

Usa la API de lotes para evaluar hasta 1.000 direcciones en una sola solicitud, dentro del límite de 128 KiB por solicitud. Los resultados siguen el orden de envío, incluidos los duplicados. Cada entrada respondida se factura. Consulta los límites de reintento documentados antes de reintentar un lote; esta página no ofrece un control de carga de listas.

You can track delivered messages, opens, clicks, bounces, spam complaints, and delivery latency. Filter and group performance by sending domain, recipient domain, mailbox provider, tag, template, or broadcast to spot trends quickly. You can also inspect delivery and bounce rates by sending IP to monitor infrastructure health.

Analytics update within minutes as delivery and engagement events arrive, and each report includes a freshness timestamp so you know how current the numbers are. Metrics are recorded when the event happens, meaning a link clicked on Tuesday appears in Tuesday's activity even if the email was sent earlier in the week. You can query hourly or daily rollups across the dashboard and reporting API.

Delivery metrics confirm that the recipient's mail server accepted your message. To see whether accepted emails land in the primary inbox or the spam folder across major providers, use Inbox Insights, and use Competitive Insights to benchmark competing brands. To measure revenue or signups, pass campaign tags or link parameters into your application's analytics.

No. You can generate a Bird forwarding address in seconds and forward emails from your existing inbox to start testing right away. When you are ready to receive mail directly on your own brand, you can configure a receiving subdomain.

Yes. Register and verify a dedicated subdomain in Bird, enable inbound receiving, and publish the provided MX records in your DNS. Using a dedicated subdomain lets Bird process application replies and support tickets while your primary domain continues routing employee mail to Google Workspace or Microsoft 365.

Bird sends a webhook notification to your server as soon as an incoming email arrives, and your app can fetch the parsed subject, plain text, HTML body, headers, and attachments through the API. You can verify webhook signatures to confirm each request came from Bird and rely on automatic retries if your endpoint is temporarily unavailable.

Inbound email turns incoming messages on your receiving domain or forwarding address into structured webhook events and parsed content for your backend. Agent Mailboxes give each AI agent or support workflow a dedicated inbox that tracks multi-turn conversation threads, filters unwanted senders, and sends replies in context.

Inbound email parses incoming messages and forwards them to your webhook endpoint for one-way processing. An agent mailbox gives your AI agent or support app a persistent inbox that groups messages into conversation threads, strips quoted reply history to keep prompts clean, enforces sender admission rules, and sends threaded replies.

Yes. You can create mailboxes on any verified domain or subdomain where you have enabled inbound receiving. For quick setup without DNS changes, you can also provision a generated or custom handle on Bird's managed inbox domain, which stays reserved to your workspace even if you delete the mailbox later.

Parsed message headers, clean extracted text, and attachments are stored for 30, 90, or 365 days based on the retention period you choose for your plan. Raw MIME files and unparsed original bodies are kept for 30 days so you can debug formatting or delivery issues.

Yes. Configure mailbox webhooks to trigger your agent automatically whenever an admitted message lands in the inbox, or connect to the live event stream for real-time updates during an active session. If a streaming connection drops, your agent can list recent thread messages through the API to catch up on anything that arrived while disconnected.

Inbox Insights is the current Bird dashboard experience for inbox placement and seed testing, replacing the older Inbox Tracker name. If your organization uses a standalone eDataSource or legacy Tracker account, you can continue signing in through that platform's existing portal and support team.

Your delivery rate shows how many emails were accepted by recipient mail servers, which includes messages that later get filtered into spam. Inbox Insights shows where those accepted messages actually land across major mailbox providers, breaking down primary inbox versus spam folder placement alongside your delivery metrics.

Verify your sending domain in a workspace with Inbox Insights enabled and turn on domain tracking. Once active, panel placement estimates populate for supported mailbox providers as your domain sends volume, and you can run seed tests using your plan's seed testing allowance.

No. Creating a seed test reserves a set of test addresses for you to include in your campaign audience or pre-send test list before the expiration date. Placement results populate in your dashboard as those seed mailboxes receive your email, and reserving a test uses one test from your allowance.

You can see inbox, spam, and missing counts for each measured mailbox provider, verify that SPF, DKIM, and DMARC passed on the received messages, and compare how engaged versus dormant test mailboxes filtered your campaign.

Inbox Insights is designed for interactive investigation in the Bird dashboard, where you can inspect placement trends and seed test results visually. For programmatic reporting on your sent volume, bounces, opens, and clicks, use the Email analytics API.

Yes. Competitive Insights is the Bird dashboard tool for tracking competing brands and benchmarking their email programs, replacing the older Competitive Tracker name. If your team uses a legacy standalone account, you can continue accessing it through its existing sign-in and support path.

Competitive Insights estimates volume and engagement from a representative panel of consumer mailboxes, tracking each watched brand's primary high-volume sending domain. Mail sent from secondary domains or very low-volume senders may not appear in the panel sample.

Yes. The campaign feed displays captured subject lines and rendered email screenshots when available from the panel. It focuses on observed broadcast campaigns to help you review messaging, cadence, and seasonal promotions across your industry.

Treat them as complementary signals. Competitor read rates come from observed mailbox activity in the measurement panel, whereas your own open rates come from tracking pixels in the emails you send. The dashboard labels panel estimates alongside your own delivery metrics so you can compare directional trends accurately.

Yes. Each brand profile lists the detected email service provider when the panel can identify it from message headers and sending infrastructure. If a sender's provider cannot be verified from observed mail, the field stays blank.

Open Competitive Insights in the Bird dashboard, search for competitors by brand name or sending domain, and add them to your watchlist up to your plan's brand allowance. You can also book a demo with our team to check panel coverage for your industry before you subscribe.

Both are self-managed mail transfer agents for organizations that run their own sending infrastructure. Momentum MTA is designed for carrier-grade, high-volume environments that need deep policy customization and routing control. PowerMTA gives enterprise senders high-throughput delivery and granular queue management on their own hardware or public cloud instances in AWS, Azure, or GCP.

Momentum MTA and PowerMTA fit enterprises and mailbox providers whose compliance or infrastructure policies require running dedicated mail servers on-premises or in their own cloud. Inbox Insights and Competitive Insights are cloud tools in the Bird dashboard for any sender who wants inbox placement testing and competitor benchmarking, and you can use both without self-hosting an MTA.

SparkPost es parte de Bird. Bird Email proporciona los flujos de envío, campaña y entrega para proyectos nuevos. Una integración SparkPost existente es una integración separada: revisa sus llamadas API, registros de dominio y eventos con tu equipo de cuenta antes de planificar una migración.

Bird Email tiene su propia API y SDKs. Revisa las guías de envío, plantillas, dominio y webhooks en lugar de asumir que una solicitud de SparkPost puede enviarse sin cambios.

Momentum es nuestra plataforma de infraestructura de email on-premises para envíos de alto volumen, con flujos de trabajo personalizables, enrutamiento y parámetros de entrega configurados a través de su Policy Manager. Está diseñada para escalar con tu volumen de envío manteniendo un rendimiento estable, y es compatible con Unicode completo (SMTPUTF8) para que puedas enviar a conjuntos de caracteres internacionales.

Adaptive Delivery es la gestión automática de tráfico de Momentum. Observa cómo responde cada proveedor de buzón a tu correo y se ajusta en tiempo real: limitando, aplazando o pausando brevemente un flujo para proteger tu reputación, y luego acelerando de nuevo cuando la situación se despeja. Llegas a la bandeja de entrada sin tener que vigilar manualmente las tasas de envío de cada proveedor. El Intelligence Router te muestra esto en todas tus fuentes de datos, con alertas en tiempo real cada vez que realiza un ajuste.

Sí a ambas preguntas. Momentum se ejecuta en tus propios servidores, en cualquier nube principal o repartido entre ambos, para que puedas adaptarlo a tu infraestructura, costes y requisitos de cumplimiento, y cambiar esa combinación con el tiempo. Además, sigue evolucionando: las versiones recientes lo mantienen al día con sistemas operativos modernos, TLS 1.3 y estándares actualizados de seguridad y SMTP, y exponen eventos de mensajes a través de APIs en tiempo real que puedes integrar en tus propios informes y automatizaciones.

Sí. PowerMTA puede retransmitir parte del tráfico a la Bird Email API alojada mientras entrega el resto directamente desde tus propios servidores, que es la forma más sencilla de probar la plataforma alojada o migrar gradualmente sin mover todo de una vez. PowerMTA se ejecuta en infraestructura propia, así que esas IPs siguen bajo tu gestión. El tráfico que retransmites a la plataforma alojada puede usar nuestras IPs allí o tus propias IPs dedicadas, mientras que todo lo demás permanece completamente bajo tu control.

Los MTA virtuales te permiten ejecutar varios flujos de envío independientes dentro de una instancia de PowerMTA, cada uno con sus propias IPs, reputación y límites. Úsalos para gestionar correo transaccional, correo de marketing o distintos clientes por separado. Los dominios compartidos y las políticas de los proveedores de destino aún pueden afectar la entrega entre flujos.

Yes. API requests require HTTPS, and SMTP submission requires TLS encryption on port 465 or a completed STARTTLS upgrade on ports 587 and 2525 before authentication is accepted, keeping your credentials encrypted in transit. Unencrypted submission on port 25 is disabled. To keep data in your chosen region, send through the regional endpoint that matches your API key; Bird's official SDKs and CLI detect the key's region prefix and route requests automatically.

You choose the exact read or write permissions for each API key across email sending, marketing campaigns, and domain management, so a key created for an application server to send receipts cannot modify your domains or access unrelated resources. Administrative actions such as managing team members, workspace settings, API keys, and IP pools require an authenticated user session. You can also attach an IP address allowlist to any key so requests from unfamiliar networks are rejected.

When you rotate an API key, Bird issues a replacement key immediately and keeps the previous key active for a configurable grace period (24 hours by default) so you can roll out the new credential across your services without dropping traffic. If a key is compromised, you can set the grace period to zero to revoke it right away, and you can assign a custom expiration date to the new key if your security policy requires periodic rotation.

Yes. Bird supports enterprise single sign-on over SAML 2.0 and OIDC with identity providers such as Okta, Microsoft Entra ID, and Google Workspace. Your account team can enable SSO for your organization, and team members who sign in with an email and password can enable multi-factor authentication on their own accounts.

Yes. The organization audit log records configuration and administrative changes in a read-only timeline showing the actor, workspace, timestamp, and outcome, and you can export entries in OCSF format to your SIEM. The audit log tracks account and infrastructure actions, while individual sent and received emails are recorded in the email log.

You can download compliance certifications and security documentation from the Bird Trust Center at trust.bird.com, and review our data processing agreement, privacy statement, and acceptable use policy at bird.com/legal. If your procurement or security team requires a custom vendor questionnaire, contact your account team.