Can Users Create Domain Email Accounts?

Can users and clients create domain email accounts? Why does webmail want me to login using the user of

domainname.com?

Weird....

Just wondering if it's possible. Let me know if it is!

Yes, domain owners (domain admins or clients of your ehcp panel) can setup email accounts.
email accounts cannot setup additional email accounts, rather, they can adjust forwardings and change their passwords..

email users should login using info@domain1.com because,
if it logins using only info,
how the user info@domain2.com would login ?
in future, maybe, we may adjust it to work under respective domain, and understand related domain itself...
but currently,this is like that...

it may be possible, if you hack into some squirrelmail code...
that would be good... but i did not have time to make it better..
in fact, configuring mail things in ehcp and in an hosting environment was the hardest part... so, I feel myself lucky of getting everything work...