How Inbox stores your mail
An activated PDS-backed Inbox keeps original messages and synchronized mailbox state on your personal data server (PDS). Comail also keeps a readable copy in Stalwart, the mail server used by webmail and mail clients.
Who can read the content
Section titled “Who can read the content”Your PDS stores this data in private AT Protocol Spaces. Private Spaces control access, but they do not provide end-to-end encryption. Your PDS provider and Comail’s systems process readable content. The sending relay also processes message bodies and addressing information to deliver mail to the recipient’s provider.
Calendar, Contacts and Files use their own private Spaces when enabled. Comail keeps the account, address, consent and authorization state needed to provide these services separately.
What a rebuild can recover
Section titled “What a rebuild can recover”Comail’s mailbox copy can be rebuilt from data saved to your PDS. Drafts, sent copies, and mailbox changes reach the PDS after synchronization succeeds. Changes that have not synchronized cannot be recovered by rebuilding from the PDS. A mailbox rebuild also does not restore all of Comail’s account and authorization state.
Signing out and removing access
Section titled “Signing out and removing access”Signing out of the browser does not revoke the background permission used to receive and synchronize mail. Removing Comail’s access prevents new Space credentials from being issued, but a credential already issued can remain usable for up to ten minutes. Membership removal does not automatically revoke every separately issued mail credential or erase stored content.
Exporting or removing data
Section titled “Exporting or removing data”Contact postmaster@atmos.email for the current Inbox export and deletion options. Keep a verified copy of content you want to retain before requesting removal.
The relay account export contains relay records, not your Inbox messages, calendars, contacts or files. Its account deletion schedule does not establish a removal deadline for private Spaces or Inbox backups.
Your PDS provider has its own history and backup rules. Earlier versions of an item can remain in private Space history after you remove it from the current view. Revoking access is separate from deleting those records. Copies already downloaded by a recipient cannot be recalled.