How do I stop mail from a sender I trust landing in Spam?

1. Open the message in Spam.
2. Choose Mark not spam (or press !).
3. Leave the message somewhere you can read it, such as your inbox or an archive folder.

About half a minute later, Cirrux adds the sender's address to the allowed senders of that mailbox. The same works from Apple Mail, Outlook or any other mail app: moving a message out of Junk counts as well.

Why it sometimes doesn't stick

• The message was deleted or moved back to Spam right after. Cirrux reads that as cleaning up, not as trusting the sender, and adds nothing. Mark it not spam, and only tidy it away a minute later.
• You have more than one mailbox. Allowed senders are kept per mailbox, so do it in each mailbox that receives their mail.
• The message failed its domain's anti-spoofing check (DMARC). Cirrux never lets an allowed sender skip that check, because anyone can put a trusted address in the From line. If a sender's own mail setup fails DMARC, their mail can still land in Spam, and only they can fix that.

See and change your lists

Go to Settings → Mailboxes, pick the mailbox and open the Block/Allow tab. It lists the senders you've blocked and allowed, and you can remove any of them. Choosing Mark as spam on a message blocks its sender in the same way. People you send mail to are allowed automatically.