Once returning to the use of email I had to upgrade from Mint19 kmail version 5.7.3 to the current 5.19.3 (21.12.3) on Mint21. Previous Mint worked just fine with current isp/mail server but this new version, not so much. Have bounced around multiple versions / platforms but none have this working on IMAP. Including Kubuntu. I understand from some “ancient” ('07 I think) post I dug up this may be to do with akonadi, to paraphrase, “never being fully functional on imap”
By restricting filters to local account I was able to stop kmail from repeatedly rescending same email but still had the problem whereby it would believe it had deleted the mail from server but actually had not. They show greyed and inaccessable and still remain on server.
Working now with Kubuntu (slight improvement) but still problematic.
Would very much like to pick up where I left off some years ago and take to next level with encryption (as current circumstance make this imperative / at least highly advisable) using what was for me the premiere os (desktop environment). On a related note I am here using a Gnome browser as apparently KDE forums no longer support thei own. eg Falkon and Konqueror. ->insert rolling eyes smiley here<-
Perhaps I should include an actual question which would be:
-Am I correct in that there is a known issue with support of IMAP?
-Is there a setting or configuration that can be altered to address the issue I’m having?
-Recommendations / Suggestions?
I should add that one symptom of the problem is the mail filter agent progress bar, currently on this machine (21 Cinnamon 5.4.12) with filters set to local folders only and corresponding filters unchecked, the progress bar is frozen at 0%. On other setups it will behave ie will complete and no longer show 0% as though it were frozen.
Reviewing bug reports page I see that indeed varios problems related to kmail/akonadi/imap have been around since '07.
Why should it (ver. 5.19.3 (21.12.3)) work on Mint21 but not the successors?
What was changed and is the KDE team looking at making this software work consistently with such mail servers or not?