How to monitor IMAP protocol?

Hello,  After doing a bit or reorganization of where the location of 
installation files for Apache James, and or some updates I received from 
Linux OpenSuSE 15.3 x64, something broke and I am now experiencing some 
behavioral issues with my Thunderbird client -

Thunderbird - version 91.11.0 (64-bit)
Apache James - version 3.4

For example, I cannot seem to move some emails out of my Inbox folder, 
and put them in another sub-folder. I don't see any error messages, 
either from Thunderbird itself, nor in any of the log files from the 
Apache James server. And the moved emails do disappears from the Inbox 
folder temporarily only to reappear back in the Inbox folder a little 
later. Another symptom that has show up is Thunderbird keeps reporting 
that it cannot save a copy of my draft emails while I am composing it.

So my question is, what is the best way to monitor the IMAP protocol 
communication that is going on between my Thunderbird email client, and 
the Apache James server? Can I capture it via the log files for Apache 
James or must I learn how to use a low level network monitor such as 
Wireshark? If the latter, are there any gurus around to show me how to 
capture just the IMAP communication?

As always, much appreciate any thoughts and advise and thanks for taking 
the time to help me!    Marc C
-- 

*"The Truth is out there" - Spooky*

*_   _   .   .   .       .   .   .   _ _       .   _   _   _   _   .     
   .   .   .           _   .   .       .           .   _   _       .   _ 
       _ _   .   .   .       .   _   _   .       _   .   .   _   .   _   
_           _   _       .   _       .   _   .     _   .   _   . *

Computers: the final frontier.
These are the voyages of the user Marc.
His mission: to explore strange new hardware.
To seek out new software and new applications.
To boldly go where no Marc has gone before!

(/This email is digitally signed and the OpenPGP electronic signature is 
added as an attachment. If you know how, you can use my public key to 
prove this email indeed came from me and has not been modified in 
transit. My public key, which can be used for sending encrypted email to 
me also, can be found at - 
https://keys.openpgp.org/[email protected] or just ask me 
for it and I will send it to you as an attachment. If you don't 
understand all this geek speak, no worries, just ignore this explanation 
and ignore the OpenPGP signature key attached to this email (it will 
look like gibberish if you open it) and/or ask me to explain it further 
if you like./)