quickly going blind here ... more on cram-md5 ...

[Marc G. Fournier]

I swear, its gotta be stupid as a missing setting :(

Added a bunch more debugging to the authenticate function in
imp/lib/IMP.php, which is now showing me:

Feb 14 13:15:59 HORDE [error] [imp] [/imp/redirect.php] Login Attempt(flags: 64, connstr: {earth.hub.org:143/imap}): 131.162.6.30 to earth.hub.org:143[imap] as scrappy with [pass [pass] here xxxx] [on line 328 of "/usr/local/www/horde/imp/lib/IMP.php"]
Feb 14 13:15:59 HORDE [notice] [imp] Login success for scrappy [131.162.6.30] to {earth.hub.org:143} [on line 51 of "/usr/local/www/horde/imp/redirect.php"]
Feb 14 13:16:09 HORDE [error] [imp] [/login.php] Login Attempt(flags: 64, connstr: {earth.hub.org:143/imap}): 131.162.6.30 to earth.hub.org:143[imap] as scrappy with [pass [pass] here xxxx] [on line 328 of "/usr/local/www/horde/imp/lib/IMP.php"]
Feb 14 13:16:09 HORDE [error] [imp] [/login.php] FAILED LOGIN 131.162.6.30 (forwarded for [131.162.138.223]) to earth.hub.org:143[imap] as scrappy [on line 341 of "/usr/local/www/horde/imp/lib/IMP.php"]

So, its hitting imp/redirect.php, doing an authenticate, and finds that
thta works ... then its hitting /login.php, does it again, through the
same function, and from what I can tell, the exact same values, which then
fails ...

I'm stumped right now ...