Closed Bug 1740891 Opened 4 years ago Closed 4 years ago

Gmail IMAP connection failures after updating to 91.3.0 on macOS

Categories

(MailNews Core :: Networking: IMAP, defect)

Thunderbird 91
defect

Tracking

(Not tracked)

RESOLVED WORKSFORME

People

(Reporter: o.nickolay, Unassigned)

Details

Steps to reproduce:

After updating to 91.3.0 on macOS started to receive constant Gmail IMAP connectivity errors during sync, getting 'connection refused' notification.
However, it works fine on the other account on custom server (and no internet connectivity issues at all).

After receiving this error connection hangs completely, so need to restart Thunderbird to partially refresh emails, some of them are loaded but after doing some manipulations (deleting emails, marking as read, etc), syncing stops again.

Should note that I have a bunch of folders in Gmail, but previously things worked fine.

Actual results:

Emails are not downloaded from server/changes are not uploaded.

Expected results:

Syncing should work fine.

Hm, somehow after number of restarts it went through the issue, and now works well (except that it changed 'Download' flags on some folders).
The thing I did is run and refreshed Mail on iOS, which uses the same account. Given that there is 15 simultaneous IMAP connection limitation maybe something stuck on Apple's side, bombing server with connections, dunno.

Status: UNCONFIRMED → RESOLVED
Closed: 4 years ago
Component: Untriaged → Networking: IMAP
Product: Thunderbird → MailNews Core
Resolution: --- → WORKSFORME

Looks like issue is not related to Thunderbird at all but was GMail's issue:
https://www.google.com/appsstatus/dashboard/incidents/AFdF8J4m8XKadmM9NrVK

Sorry for bugging you!

You need to log in before you can comment on or make changes to this bug.