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Outreach mailbox setup

Outreach uses dedicated SMTP/IMAP mailboxes that are separate from product email. Mailgun is not used for outreach email.

SMTP/IMAP requirements

  • Use authorized outreach mailboxes on domains approved for the campaign owner.
  • Configure SMTP host, SMTP port, TLS mode, SMTP username, and provider-specific app password or supported credential.
  • Configure IMAP host, IMAP port, TLS mode, IMAP username, and provider-specific app password or supported credential so replies can be monitored.
  • Store and rotate credentials only through admin outreach mailboxes after sign-in. Do not place outreach mailbox credentials in appsettings.

Deliverability checklist

  1. DNS aligned.Configure SPF, DKIM, and DMARC before live sending.
  2. Sender identity reviewed.Use a clear sender name, monitored reply-to address, and accurate physical address.
  3. SMTP test passed.Run a send test from the admin mailbox page before enabling the mailbox.
  4. IMAP test passed.Run a read test so reply monitoring and follow-up suppression can work.
  5. Warmup caps set.Start with conservative daily and interval caps, then increase only after bounce and reply quality stay healthy.

Product email boundary

Mailgun handles AssetLed product/site transactional and marketing email only. Customer outreach email must use configured outreach SMTP/IMAP mailboxes so product notifications, billing email, security notices, and prospect outreach remain operationally separate.