Hi,
A user has just realised that only some of our emails from any user in our domain have been delivered to an external domain for the last month and a half.
We haven't had any reports from any other domains regarding the same issue. Just this one.
There doesn't seem to be any pattern to the emails that deliver and those that don't at the moment.
I have been shown an email that we know was not delivered to the external address in question.
I have checked the transport logs and it shows; EventId: HARedirectFail Source: SMTP
In the event viewer at the same time I have an information message with; Event ID: 103Source: ESENT
Running on MS Windows Server 2012, Exchange 2013, sophos pure message 4.0.
I would very much appreciate any input or help on this matter big or small.
Thanks
JCronies