Opened 3 months ago

Closed 3 months ago

#23499 closed enhancement (fixed)

fetchmail-6.6.6

Reported by: Bruce Dubbs Owned by: Joe Locash
Priority: normal Milestone: 13.1
Component: BOOK Version: git
Severity: medium Keywords:
Cc:

Description

New point version.

Change History (2)

comment:1 by Joe Locash, 3 months ago

Owner: changed from blfs-book to Joe Locash
Status: new → assigned

comment:2 by Joe Locash, 3 months ago

Resolution: → fixed
Status: assigned → closed 
fetchmail-6.6.6 (released 2026-06-24, 32443 LoC):

## CRITICAL BUGFIX FOR IMAP:
* The IMAP client, which has always used message indexes for the selected
  mailbox, did not abort when receiving an EXPUNGE response - which changes
  message numbers inside the mailbox.  Unlike UIDs, the message numbers are
  not stable and fetchmail does not have internal interfaces to track which
  messages are deleted, and adding those to a 6.6.X release would be too
  risky, and switching to UID is also too big a change, so we have no
  choice but to abort the session when seeing an EXPUNGE response without
  our own EXPUNGE request, to avoid marking the wrong message as seen/deleted
  or skip the wrong one, or assume the wrong message size.
  Earl Chew reported this versus Yahoo Mail via Gitlab Work Item #91, which
  automatically expunges messages that are marked with the \Deleted flag.

  This has one new message for which we do not have translations yet,
  it is urgent to get the fix in the field.

Fixed at b362709b30.

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