Hello,

I'm new to maildrop. I'm hoping maildrop is the answer to my problem.

Is it possible to filter mail sent to internal group email address so that *only* domain users can send to the group email address?

For example. qual...@example.com is the internal group address for users a,b,c of example.com

I want only users from example.com send emails to qual...@example.com and not from any other domain.

This is to restrict spam and other non-domain users from misusing the group email address.

How do i filter senders to this email and discard mails from other domains?

Please excuse me if this is the not the correct list and pointers to post it to the appropriate list would be helpful.

Thanks, Josh