#1142404 Expunge on exit or compress doesn't work

Package:
thunderbird
Source:
thunderbird
Description:
mail/news client with RSS, chat and integrated spam filter support
Submitter:
Al Ma
Date:
2026-07-19 12:15:02 UTC
Severity:
normal
#1142404#5
Date:
2026-07-19 12:12:18 UTC
From:
To:
Continuing http://bugs.debian.org/1131305, an e-mail shows up in the DraftBox in the Web interface of Rambler but not in Thunderbird (TB). I presume that the e-mail is expunged. However, when I compact the folder or open and close TB (expunge on exit is set), nothing happens with this e-mail: it is still gone in TB and still visible in the Web interface.

Besides manually removing the old e-mail using the Web interface, the only thing that seems to clean up is starting to write another e-mail in TB. In particular, when I started to write this bug report in TB, the DraftBox in the Web interface got updated: the old draft finally disappeared, and the new draft appeared.

Here are my settings:

mail.imap.check_deleted_before_expunge=false
mail.imap.expunge_after_delete=false
mail.imap.expunge_option=2
mail.imap.expunge_threshold_number=20

However, I thought that compacting the folder in TB always triggers permanent deletion …