Hi, we have Ironport ESA deployed in one-arm mode. all incoming email passes through Ironport before for warding it to our Lutos server. The issue when we set Lutos server to relay outbound emails to Ironport for Security processing then Ironport sends it outbound. Outgoing mail are rejected by Ironport error "Rejected by RAT".
Any inputs in this?
Thanks,
Ursulo
