[CentOS] Dovecot & pam issues

From: Mike Watson <mikew at crucis.net>

> However, another user on the same system works!
> User bob was the one I created on the initial CentOS install, joe was 
> added later.

So, did you compare bob and joe...?
Looks the same in passwd, group, shadow?
Checked requirements in pam.d?
Used ID > 500 ?

JD