[pkg-fetchmail-maint] Bug#740373: fetchmail: Generated emails about authentication failure is missing message-id

[Petter Reinholdtsen]

Package: fetchmail
Version: 6.3.21-4

Hi.  When fetchmail is unable to log into the IMAP server to fetch
emails, it inject an email into the mail spool to report this problem.
But the injected email lack message-id, causing the notmuch mail
indexing system to not handle these emails very well.  I discovered this
when my scripts processing emails just failed to discover these when
looping over all message-ids.

Here is an example email, with the complete header:


From: FETCHMAIL-DAEMON at login1.uio.no
Date: Thu, 06 Feb 2014 14:52:47 +0100 (CET)
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="ISO-8859-1"
Subject: fetchmail authentication failed on pere at some.host
Content-Length: 468

Fetchmail could not get mail from pere at some.host

The attempt to get authorization failed.
This probably means your password is invalid, but some servers have
other failure modes that fetchmail cannot distinguish from this
because they don't send useful error messages on login failure.

The fetchmail daemon will continue running and attempt to connect
at each cycle.  No future notifications will be sent until service
is restored.
--
The Fetchmail Daemon


Please adjust fetchmail to include a unique message-id in these emails.

-- 
Happy hacking
Petter Reinholdtsen