Hi there,
I have a security camera NVR that is sends an email when it wants attention, but our Exchange server keeps telling me the sender address is blank, so the messages get quarantined.
The logfile Microsoft\Exchange Server\V15\TransportRoles\Logs\Hub\ProtocolLog\SmtpReceive looks normal;
<,MAIL FROM:<NVR@mydomain.local> SIZE=0 AUTH=<>,
but by the time it gets to the tracking log, it looks like this;
MessageSubject: Test Mail
Sender :
ReturnPath : NVR@mydomain.local
Directionality : Incoming
and the EventData looks like this;
Key : OriginalFromAddress
Value : NVR@mydomain.local
Key : AccountForest
Value : mydomain.local
Key : PurportedSender
Value : mydomain.local NVR@mydomain.local
Any ideas what could be causing this, and how i go about fixing it?