[imp] Case sensitive user names

[Chuck Hagenbuch]

Quoting David Richards <d.richards@qut.edu.au>:

> where might I start looking to put in a local hack?

I apologize; I forget what version you're running. If it's 2.2, then look in 
the authenticate() method in horde/lib/horde.lib, in the ImpSession class. If 
it's 2.3, look in imp/lib/IMP.php for the authenticate() method of the IMP:: 
class.

-chuck

--
Charles Hagenbuch, <chuck@horde.org>
"We have no fuel on board, plus or minus 8 kilograms." -A NASA scientist