If you read my last message posted you would see that I did the search and I tried the suggestions, but none of them fixed the problem. Once again I did a search on all the terms you suggested and found a bunch of possible solutions. Unfortunately, none of these solutions fixed the problem this time either.
I think the account is corrupt or something. It doesn't show up on the system as being a valid account, but if I log into webmail as this user I can send and receive email. I can also connect with ssh under this username.
If anyone has any other suggestions, please, let me know. Thanks.