On Monday, 8 November 2021 07:26:05 GMT Anders Lund wrote:
> mandag den 8. november 2021 01.53.44 CET skrev David Jarvie:
> > On Monday, 8 November 2021 00:48:17 GMT David Jarvie wrote:
> > > I'm running KMail 5.15.3 (KDE 20.08.3), Debian stable. It worked fine
> > > until
> > > a few days ago, but it has now stopped fetching new emails from my IMAP
> > > account. It seems to fetch some when I first log on, but not up to the
> > > current time - for example, when I logged on today it only fetched
> > > emails
> > > up to yesterday afternoon. From then on, until I shut the system down,
> > > it
> > > doesn't fetch any more. It is configured for 5-minute interval mail
> > > checking, and I've also manually checked mail in the account.  I can
> > > still
> > > send and delete IMAP emails successfully.
> > > 
> > > Any ideas on how to get it working again would be welcome.
> > 
> > Interestingly, my post above has now appeared in my KMail IMAP inbox, but
> > nothing else in the last 32 hours has appeared. Checking on my phone,
> > there
> > are at least 14 mails which are missing.
> 
> For me a functional workaround is restarting kmail and akonadi (close kmail,
> aconadictl restart, start kmail). It's not required very often.

On Monday, 8 November 2021 20:48:56 GMT mh@mike.franken.de wrote:
> I had this problem a few weeks ago.
> I restarted KMail and Akonadi a few times, but the problem reoccurred every
> so often. After watching the sync process for a while (arrow up in the
> lower right corner in KMail) I observed, that it tried to sync one folder
> over and over. This was a very large folder (~ 50.000 mails). I modified
> the folder settings, so that this folder now gets synced only, when it is
> selected. But even then the sync process hat to come to an end for at least
> one time, before the situation improved - and it took really long, i.e.
> about 2 or 3 hours. Perhaps your problem has a similar reason?

Thank you both for your suggestions. The problem seems to have disappeared 
since my last post, so I haven't been able to try them out.

Note that the issue occurred more than once after rebooting my computer, and I 
also tried restarting akonadi (although not kmail) while logged in. The issue 
also persisted over several hours. So I suspect that my problem may have 
needed a different fix from what worked for you.

-- 
David Jarvie.
KDE developer, KAlarm author.