HarborOrganizationWorkspacesProductionSandbox
Delivery agent
API key · Customer operations teamALAlex Lee AdminPermissions updated
High-volume email.
Infrastructure you control.
Run PowerMTA on your own servers or in a public cloud. Give your team control over sending IPs, queues and delivery routing for business-critical email. Work with our MTA team to scope the license, deployment and support your operation needs.
PowerMTA
Separate sending streams
Your sending applications
Your infrastructure
Virtual MTA 01
Transactional
Receipts and account messages
Sending IPs
Queue · rate limits · routing
Virtual MTA 02
Campaigns
Newsletters and promotions
Sending IPs
Queue · rate limits · routing
GmailOutlookYahoo
Delivery to recipient mail servers
Illustrative configuration. Separate traffic by purpose, customer or sending requirements; scope capacity and licensing with the MTA team.
Advanced infrastructure
Deploy PowerMTA on your own servers or in any public cloud. Achieve high-speed sending with a small hardware footprint, requiring fewer servers while delivering greater performance.
Smart Alerting
Receive specific recommendations for resolving high-priority issues. Address list quality or low engagement problems before they impact your email performance.
Advanced monitoring
Track delivery metrics and receive instant alerts for spam traps or blocklist issues. Take immediate action with expert recommendations to maintain sending reputation.
Comprehensive Analytics
Review over 35 individual metrics affecting deliverability and engagement. Track bounces, blocks, and delivery rates with detailed per-domain, per-campaign, and per-recipient analytics.
Performance Monitoring
Monitor sender reputation in real-time through SMTP responses from inbox providers. Make instant adjustments to optimize delivery based on live performance data.
Volume-Based Licensing
Scale up or down based on your needs with volume-based licensing. Easily adjust for seasonal changes, testing, and disaster recovery without unnecessary costs.
Cloud-ready deployment
Run PowerMTA on your own server or in any public cloud such as AWS or Azure, with a small hardware footprint that delivers high-speed sending at scale.
Separate your sending streams.
PowerMTA lets you split traffic into independent streams, called virtual MTAs, inside a single instance. Each stream gets its own IPs, reputation, and rate limits, so your transactional mail, your marketing campaigns, and your per-customer sending stay isolated. Separating streams gives you more control over how traffic is managed. Shared domains and recipient-provider policies can still affect results. Route each stream directly from your servers or through another platform.
Move to the hosted platform at your own pace.
You don't have to choose between PowerMTA and a hosted service. Run PowerMTA as a relay and send a slice of your traffic, say ten percent, on to the hosted Bird Email API, watch how it performs, then shift more when you're ready, all without repointing your sending code. Keep some streams on your own servers for as long as you like, or retire the on-prem footprint entirely once you've migrated. There is no rip-and-replace, and you can roll back at any time.
Questions about PowerMTA
Can I run PowerMTA and the hosted platform together, and who controls the sending IPs?
Yes. PowerMTA can relay some traffic to the hosted Bird Email API while delivering the rest straight from your own servers, which is the simplest way to try the hosted platform or migrate gradually without moving everything at once. PowerMTA itself runs on infrastructure you own, so those IPs stay yours to manage. Traffic you relay to the hosted platform can use our IPs there, or your own dedicated IPs, while everything else stays entirely under your control.
What are virtual MTAs?
Virtual MTAs let you run several independent sending streams inside one PowerMTA instance, each with its own IPs, reputation, and limits. Use them to manage transactional mail, marketing mail or different customers separately. Shared domains and recipient-provider policies can still affect delivery across streams.
Choose how to run your email infrastructure
Enterprise emailCompare managed sending with infrastructure your own team operates.MomentumCustomize message processing, delivery policies and routing.Inbox InsightsInvestigate placement alongside your own delivery reporting.Bird Email platformExplore sending, campaigns, receiving and delivery controls.
Scale without
losing control.
Organize teams in workspaces, control API access, and trace changes through audit logs.
HarborOrganizationActive
Audit log
Production- Workspace
- Production
- Resource
- Delivery agent
- ReadRead & write
Team Customer operationsActor role AdminOutcome SucceededTime 22 Sep, 09:42:18 UTC
Succeeded