Mail

Addresses and mailboxes

An account has a primary address and aliases on the organisation's domains. Mail to you+tag@domain arrives marked with the tag, so you can file by tag without extra addresses.

A group can be a shared mailbox — one store every member works in, with flags and moves seen by all — or a distribution list. The standard folders (Inbox, Sent, Drafts, Junk, Trash, Archive) exist from the first use, plus the server's Outbox and Quarantine. Which folder serves as your Trash, Junk, Sent, Drafts or Archive is your decision, not the server's.

Any client

• The mail web app on the install — the same surfaces, the same data.
• Any JMAP client (RFC 8620/8621).
• Any IMAP/SMTP client: Thunderbird, Apple Mail, Outlook, FairEmail/K-9, the GNOME and KDE clients. Where the client supports it, autodiscovery fills the settings in for you.

One app password opens IMAP, JMAP and the backup view — one credential, revocable by name, minted only behind a fresh passkey assertion.

Sending

• From your primary address, any alias, and any shared mailbox or person you may send as.
• Scheduled sending up to 30 days ahead, and a 15-second undo window on every send.
• Delivery status notifications on request; failures come back to you as a bounce in the Inbox.
• Everything you send is DKIM-signed, checked against the domain's own SPF/DKIM/DMARC before it leaves, and delivered with DANE and MTA-STS honoured.

Receiving

Mail is authenticated (SPF, DKIM, DMARC, ARC), scanned for viruses, scored for spam and brand impersonation, and filed to Inbox, Junk or Quarantine. A lookalike link in a message opens a warning page before it opens the destination. One-click unsubscribe works from the web app.

Rules and automatic replies

• Mail rules file, flag, reject or redirect — conditions include the +tag the mail arrived with and the address it arrived by. A rule may leave out its condition: being in its folder is then the condition, so one rule can take every message that arrives in Archive and mark it read.
• Signatures and rules now live in Preferences, under Mail — one signature per address you send from, rich or plain, set once and kept.
• A vacation responder that answers only authenticated, explicitly addressed mail, once per sender per week.
• Read receipts according to a stance you choose.
• Trusted senders and allow/block lists.
• A pre-send filter webhook that can stop outgoing mail before it leaves.

Tags and conversations

• Every tag in use shows in the folder list with its unread count — tags come from a +tag address, a rule's flag action, the tag editor or IMAP — and picking one opens every message carrying it.
• Conversations are a preference, not an imposition: none (every message its own row), a reader that opens a thread as the whole conversation, or a list row with a count that unfolds in place. With threading on, Archive, Move, Delete and marking read take the whole conversation.
• Add a task on a message files a task in your own task list, linked back to the message — open it later from Tasks, wherever the mail has been filed since.
• Every action the mouse can take is a command a key can be given — in Preferences › Keyboard shortcuts, per context: one key can archive in a list and send while writing, and Alt+M can open Mail.

Delivery, your decision

An account has one delivery target: here, a remote mailbox you keep at another provider, or a forward to one outside address. Setting one retires the other. A forward is set behind a fresh passkey and a code mailed to the address, kept no local copy, and is verified with ARC and SRS — mail that repeatedly bounces there lands here again until the address is confirmed anew.

Search

Search runs across all folders, including the text of text-like attachments.

Your data, out

• A read-only view of every folder as .eml files over DAV, for backup.
• A virtual read-only folder of every attachment, in the files service.
• A full export (Maildir or mbox) through the GDPR export.

Guests

Someone identified by their own ATProto handle — rather than an account here — owns no mailbox. They receive the mail of a distribution group they belong to, at a delivery target of their own: a mailbox at another provider or a verified forwarding address. They never send.

Not offered

Stated plainly: POP3, Sieve, a synthetic "All Mail" IMAP folder, per-folder sharing of a personal mailbox, mailing-list features, and legal hold. Each is a deliberate decision, not an omission.