
Aster Mail
9.2#1 in email providersFrom $2.42 a monthFree planAndroidiOSWebLinux
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| Fact | Aster Mail | QeyeT |
|---|---|---|
| Custom domain | Yes | Yes |
| Encrypted calendar | No | Yes |
| End-to-end encryption | Yes | Yes |
| Free plan | Yes | No |
Aster Mail may suit people seeking an open-source email service with encrypted mail between Aster accounts and desktop mail app access. It also has import options for users moving from named providers or other IMAP services.
You want what its maker publishes above — check its page for the details.