case sensitive of email address

[Andrzej Filip]

joel at science.nus.edu.sg wrote:

>Can anyone advise me as to how to make the email address case sensitive?
>
>example:
>
>my email add is abc at company.com, however if i send a mail to ABC at company.com,
>I am able to receive it.
>
>Is there any way where by I can make it case sensitive?
>  
>
What MTA do you use ? [sendmail,exim,qmail,...]

User part of email address is traditionally case insensitive by long 
standing tradition but some MTAs (e.g. sendmail) may be configured to 
treat them in case sensitive way.

-- 
Andrzej [pl>en: Andrew] Adam Filip http://www.polbox.com/a/anfi