We have domain (myinternaldomain.com) for internal email only, meaning that no email should be delivered outside of @myinternaldomain.com.
Is it possible to configure such rule? the emails could be blocked, discarded or similar. The goal is to block any email sent to NOT internal domain.
Thanks!
I could add your domain to filter003/004, the current outbound filters in rotation, under the blocked sender list. If you want to send me a message on chat.mxroute.com (you’ll just log in with your portal.mxroute.com account) I’ll see about adding it.
It would have to leave the local server to hit the outbound filters, so shouldn’t interrupt local delivery. However, it would only be based on the “From” header which is written by the email client, so could technically be bypassed.