update on this: to make a long story short....
1) I did run mutt with debug enabled , but could not recognize anything useful 2) I had the same problem with mutt from my laptop 3) a few days ago I received a new modem from my ISP, as part of their network upgrade operations 4) more or less in the same moment the problem I reported here disappeared. Now mutt stays connected even 24 hours without losing connection. I am NOT 100% sure that the problem disappeared AFTER the change of modem. That happened during a few chaotic days, both work- and family-wise, so I did not take notes. And modems may have nothing to do at all with the disconnections. But now the problem is not there anymore, I have no clue what may have happened, and if anybody can guess... thanks in advance. Il giorno lun 12 apr 2021 alle ore 16:47 Marco Fioretti <marco.fiore...@gmail.com> ha scritto: > > Greetings, > > I use mutt on Ubuntu to access my IMAP mailboxes, on my Centos email > server that runs dovecot. Everything has worked without problems for > years. About one week ago, the connection between mutt and dovecot > became unstable. > > Before, I could leave mutt connected for days in a row, no problem. > Now, everything still works fine, except... I get every ten minutes I > get "connection timed out" in Mutt's status line, and hundreds of > messages like > > Apr 12 16:12:49 SERVERNAME dovecot: imap(ACCOUNTNAME): Logged out in=164 > out=757 > > what puzzles me is that I did not touch anything both on my server and > on my desktop, except an "apt-get update" some days before this > started. > > But cannot see how it would be related anyway, nor have I found > anything online like this. > > Any help to understand what happened and fix it is very welcome. > > Marco