Hello,
I can send email from an outside email relay (a friends server) and spoof my server and the messages get through. Perhaps I have things misconfigured, but here is what I'm doing
OutsideServer.com --- Internet ----- SME (mydomain.com)
FROM: spoofer@mydomain.com
TO: realuser@mydomain.com
RELAY: outsideserver.com
Oh... and I'm not letting the proxy on my domain.com intercept things because I'm physically sitting in the outsideserver.com network.
It seems like this never happened before the 7.3 upgrade, but then spammers change the modus operandi all the time. Am I misconfigured?