I love Thunderbird, it allows me to do so many things and normally the way I like it to be done.
But sometimes I need to tweak some config stuff to make it behave like I want to. Here I will list some config tweaks I used (and would like to remember ;) ).
Some subfolders were not showing, setting this solved it. (X is the Servers ID in TB, i.e. the order you set your accounts up.
mail.server.serverX.using_subscription = true
Sometimes deleting a message did not move it to trash, this helps. (TB copies, then deletes, but deletion is a flag, and the folder has to be expunged to remove the flagged ones)
mail.imap.expunge_after_delete = true
Check mail for all IMAP folders. Overhead, but may be necessary if SieveFilter is used.
mail.server.default.check_all_folders_for_new = true
Furthermore I would like to list my most favorite Plugins:
|CardBook||Ultimate CardDAV manager||github mozilla|
|Sieve||ServerSide Sieve Filter Mgmt||github mozilla|
|Show InOut||In/Out Icon in Message List||website mozilla|
|Virtual Identity||Different ID for contacts||github website|
|Correct Identity||Store used ID for contacts||github mozilla|
|DKIM Verifier||Verify DKIM signatures|
|Inverse SOGo Connector||CardDAV/CalDAV Sync||Calender supports CalDAV, Contacts handled by CardBook|