Sorry if this question is a bit out of topic here.

I have this one distribution list, let say all@domain.com and I want the list to only accept mails internally and not from outside. Is there any config that I can do?

One more thing, what is the attributes for distribution lists. I am looking/making some scripts for bulk add users with distribution list for users accordingly to let say departments.

Thanx in advanced! Cheers for zimbra!