We handle
- Relay operation, authentication, alignment, and TLS
- Delivery logging, bounce handling, and suppression lists
- Rate limiting and abuse protection
- Credential issuance and rotation
Transactional Mail Relay
Authenticated SMTP for your application, on its own reputation.
What this tier is
Application mail and human mail should not share a reputation. A newsletter mistake should not stop password resets from arriving, and a misconfigured signup form should not affect whether your sales mail lands.
The relay gives your application its own authenticated credentials and its own aligned sending identity. Delivery outcomes are logged, so when a customer says they never received the reset link you can find out whether it was accepted, deferred, or bounced, rather than guessing.
Specification
| Volume | 10,000 messages per month included |
|---|---|
| Protocol | SMTP submission on 587 with STARTTLS required |
| Identity | Dedicated sending subdomain with SPF and DKIM alignment |
| Credentials | Separate sets for production and staging |
| Logging | Per-message delivery outcome with reason codes |
| Bounces | Handled with an automatic suppression list |
| Rate limit | Published, enforced, and adjustable on request |
What is included
- Authenticated SMTP submission with per-application credentials
- Sending subdomain with its own SPF and DKIM alignment
- Delivery logs covering accept, defer, bounce, and rejection reason
- Bounce and complaint handling with a suppression list
- Rate limits sized to the tier and visible to you
- Multiple credential sets for staging and production
- Guidance on message construction, headers, and unsubscribe handling
Typical use cases
- Password resets, receipts, and account notifications from an application
- Alerting and monitoring mail that must not be filtered
- Form submissions from a website that currently uses PHP mail()
- Separating application mail from a mailbox that also receives marketing
Responsibility split
Written down so there is no argument about it later.
You handle
- Application-side SMTP configuration and retry behaviour
- Message content, headers, and honouring unsubscribes
- Not using a transactional relay for bulk marketing
How provisioning works
Operator-provisioned. We agree the sending subdomain, publish authentication records with you, and issue credentials once alignment verifies. Typical turnaround is one to two business days after DNS is in place.
Order
Other tiers in Business email and collaboration
Per mailbox
Business Mailbox
One mailbox on your domain, authenticated so it arrives.
$4 /mo
- IMAP, authenticated SMTP submission, and webmail
- SPF, DKIM, and DMARC published and verified during setup
- No seat minimum and no per-user suite contract
View details
Mail for the whole domain, including the addresses you have not invented yet.
$15 /mo
- Five mailboxes with unlimited aliases and catch-all handling
- Shared role addresses that deliver to more than one person
- Domain-wide authentication and delivery monitoring
View details