I'd like to see multi domain support for mail in NethServer.
Why: a lot of companies, even small companies have multiple domains for their activities. Not only name.it, name.eu, name.com but also product.com and othername.it, othername.eu and othername.org
Having the option to receive and send mail for all these domains would be a HUGE advantage over other solutions that do not provide this feature.
A way this could be implemented:
Have a main domain for Samba
Have virtual domains for the other domains
create mail aliases for those other domains per account in the main domain.
SOGo supports this (I have it working with another distro) I don't know if Samba3 supports this. If not, then it should be high on the list after Samba4 has been introduced.