[isp-linux] Odd username problem

[Eric Joe <sysop@...]

Hello all. I recently made an online signup form so cuctomers can join our 
service via a secure web page. It works great, with one very odd exception, 
and I cant figure out why. If they capitolize their username, then 
everything works great EXCEPT email. They can login with their username, 
but cant receive email.

Example: A customer signed up as   Smith

If you send an email to Smith, it gets bounced, if you send an email to 
smith, it gets bounced. They can login to the server using Smith with no 
problem. 

I have since made it so they cant use Upper case letters, but it really 
bugs me that this doesnt work. 

Running RedHat 7.2 /w Sendmail 8.11.6/8.11.0

Thanks

-- 
Eric Joe
Network Administrator
Computer Connection, Inc/Journey's End Internet