Mary,
Sorry - No custom changes, no upgrades other than the standard server yum updates.
Standard English configuration (keyboard etc.).
I have tried adding several new users with different passwords in the past to see if that was an issue, with the same results.
This is the message from the log file:
Jun 28 09:26:25 (
SERVERNAME) HORDE[3908]: [imp] FAILED LOGIN for (
user) [
IP ADDRESS] to {localhost:143 [imap/notls]} [pid 3908 on line 139 of "/home/httpd/html/horde/imp/lib/Auth/imp.php"]
Thank you for being patient and helping