[Mailman-Users] Complex accept_these_nonmembers rule

[Patrick Brueckner]

Hello list,

I'm looking for a solution to solve this problem:

I have a few lists (~20) in which i have a lot of members.
A lot of members receive their eMails from an adress 
example1 at domain1.com; but they can only send their mails from 
example1 at domain2.com

Is there a way have mailman accept emails from 
example1@[domain1.com|domain2.com] without having to enter all 
example1 at ... example2 at ... to the accept_these_nonmember rules? In logic 
this would look like this:

if SENDER_DOMAIN = "domain1.com" {
    if SENDER_USER at domain2.com exist {
         approve
     } else {
         deny
     }
}

I hope you get what I am looking for.
Regards,
Patrick