AgentStack Docs

Email domains

Add and verify a custom domain for receiving and sending support emails through an agent.

Use Add Custom Domain from the Email channel when you want an agent to send and receive support mail on a domain you control. The DNS verification wizard provides the exact records needed for that domain. Add those exact values at your DNS provider, then return to the dashboard to check verification status. Do not substitute guessed SPF, DKIM, or MX values: a mail provider’s required records can change and the dashboard is the source for your configured domain.

The Email settings page lists domains and their sending, receiving, and verification status. A domain may need separate checks before it is ready for both directions. If a record is missing or still propagating, keep the email channel disabled or use the managed address until the dashboard reports a healthy configuration. DNS changes can take time, and successful record creation at a registrar is not proof that mail delivery is ready.

Once verified, add a local address using the Email channel settings and choose the verified domain. Test inbound and outbound mail with a safe address. Review the returned message, rate-limit behavior, and alert contact before routing customer traffic to the new domain.