Atmosphere Mail

Cooperative email infrastructure for atproto. Small self-hosters pool reputation through a shared relay so mail from your own domain reliably reaches the inbox, without enterprise contracts or handing your identity to a third party.

Step one · identity

Who you are

Domain ownership is verified by DNS TXT record — the same primitive Let's Encrypt uses. Enter your handle (we'll look up the DID) or paste the DID directly, along with the domain you'll send from. We'll give you a TXT record to publish.

Afterward

What you get

An API key (shown once — save it) plus two DKIM TXT records to publish.
A labeler verifies your DNS and issues verified-mail-operator and relay-member labels on your DID.
Your enrollment enters a short operator review before you can send. Approval is typically within 24 hours.
Once approved: SMTP submission at smtp.atmos.email:587, replies routed back to your real mailbox.