Dear List Users Is it possible (and how) to block emails sent via an outside smtp server (not mynetworks) with our domain?
Background: We had phishing attacks from outside (not our ip-range) with the from-address someth...@ourdomain.ch which was sent to our users. Thanks a lot in advance Simon -- Universität Bern Abt. Informatikdienste Gruppe Netzwerk / Postmaster Simon Staehelin Gesellschaftsstrasse 6 CH-3012 Bern Raum 106 Tel. +41 (0)31 631 31 80 Fax +41 (0)31 631 38 65 email: simon.staehe...@id.unibe.ch postmas...@unibe.ch http://www.id.unibe.ch/
