Your account. Your space.
Use your Atmosphere account. Your emails, contacts, and calendar stay in a private space on your account’s server.
Your mail uses our shared relay.
The relay sends your mail to other email providers. Inbox and apps built on Comail use the same servers.
Write an email
Send from your inbox. Comail checks your sending address and signs the message.
Sent by Comail
Our shared servers send it to the recipient's email provider.
Build trust over time
Sending mail that people want helps those providers trust our servers.
Recipients' email providers still decide whether a message goes to the inbox or spam.
A personal inbox you control.
More than an inbox
Email, contacts, calendar, and files: a full replacement for your current setup. Importing your old accounts is coming later.
Use your favorite app
Keep using your favorite mail app, or use our web app in your browser. The choice is yours.
Your data stays yours
No advertising. We don’t sell your data or use it to train AI.