Deliverability

Landing in the inbox is mostly about reputation and trust. Here is what we handle and what you control.

If your first emails land in spam

This is common for a new sender. Mailbox providers treat a domain with no sending history cautiously. It improves with steady, wanted mail.

• Mark the message Not spam and reply to it from a few of your own accounts.
• Start with low volume to real recipients who expect the mail, and grow gradually.
• Avoid sending a large first burst, especially to people who never asked for it.

Set up authentication fully

• DKIM: required to verify a domain. Done once the domain is verified.
• Custom bounce domain (SPF alignment): add the recommended MX and TXT records on the bounce subdomain.
• DMARC: add a _dmarc record. Start with p=none and a reporting address, then move to quarantine once reports look clean.

To check a received message in Gmail: open it, choose ⋮ → Show original, and look for SPF, DKIM and DMARC all saying PASS.

Write mail people want

• Send transactional mail the recipient triggered: a reset they asked for, a receipt for their purchase.
• Include both HTML and plain text. Use a clear subject and a normal sentence around any link, not a bare link.
• Use a recognizable From name and a real reply address.
• Keep marketing out of transactional streams. Use a different subdomain for each.

Protect your reputation

• Never send to purchased or old lists. Bounces and spam complaints hurt every sender on your domain.
• We suppress addresses that bounce permanently or complain, so they are not retried.
• Your project’s health is monitored. If bounce or complaint rates climb too high, sending is paused to protect your domain, and you are told why.

Thresholds apply once you have sent enough messages for the rates to mean something.