Fetchmail per domain ticket creation

Hello,

Is there a way to having tickets created by a user on a per domain bases?

I.E.

jsmith@abc.commailto:jsmith@abc.com creates ticket using user abc
sara@abc.commailto:sara@abc.com creates ticket using user abc

harry@mydomain.commailto:harry@mydomain.com creates ticket using user mydomain
sue@mydomain.commailto:sue@mydomain.com creates ticket using user mydomain