Partition with sub domains, it simple and effective. If your domain is too large and causing lots of conflicts, split into sub domains. You end up with simple user.name@cs.domain.edu. user.name@arts.domain.edu user.name@engi.domain.edu, or if you have a student body included student@ad.domain.edu through student@tz.domain.edu.
As a perk you can route http traffic on the subdomains to the relevant sub groups website landing page.
Slashdot Mirror
Partition with sub domains, it simple and effective. If your domain is too large and causing lots of conflicts, split into sub domains. You end up with simple user.name@cs.domain.edu. user.name@arts.domain.edu user.name@engi.domain.edu, or if you have a student body included student@ad.domain.edu through student@tz.domain.edu. As a perk you can route http traffic on the subdomains to the relevant sub groups website landing page.