[tlug] Disabling "Expire Messages" Function in KMail

[CL <az.4tlug@example.com>]

Well, just about up and running with a 100% Linux desktop ... (almost, 
nearly, just about, 90% and counting) and have hit another Terrible 
Thing.  KMail has this habit of "expiring" read messages ... as in 
erasing them.

Since I need e-mail for work, I need a complex filing and storage system 
for messages as well as a complex sorting function ... but, I can't 
afford to have client's mail or my replies disappearing.  How do I 
COMPLETELY TURN OFF any "expire messages" capability?  Do not find this 
in any of the pull down menus nor in any related files when checking as 
root.  Fortunately, I was able to shut it down before too much damage 
was done and only cc: copies to another account were lost ... but, this 
has got to stop.

(emotionally yours)

--
CL