Fastmail Connection Issues
Reported by Matt Wean | July 7th, 2025 @ 05:47 PM
Since the new OAuth integration for Fastmail, I've been having all sorts of issues with the connection. It re-authenticates very often (many times per week), and it sometimes uses Safari and other times Chrome. It also routinely gets stuck trying to sync. I'll notice that I'm not seeing new messages, then if I try to quit MailMate, I get a notice that there are active IMAP connections and I have to force quit. I sometimes have to force quit and re-auth multiple times to get it working. I've tried removing and re-adding the account.
Comments and changes to this ticket
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benny July 7th, 2025 @ 08:37 PM
For now, you can switch back to making it password-based in the IMAP account settings window (disable OAuth2).
Before doing that, you could generate some logs for me like this:
- Open the Activity Viewer (Window menu). This enables logging.
- Wait for it to do a round of failing and re-authenticating.
- Use “Help > Send Server Logs”.
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Mac OS X email client.
benny