Hi,
Running on Exchange 2013.
So I ran into a strange problem the other day. We have an email enabled security group that has been around since the beginning of time. It’s our network admins group. Recently we noticed that it is unable to receive external emails (reports, weekly updates etc), internal everything is fine. I made sure everything is enabled on the exchange side to allow for receiving externally, no luck. I then gave this group another email address and everything worked just fine. I then added the problematic email address to my account and no luck. I can’t receive email based on this email address. I took a look at our journaling and no reference of this email address exists. I did a trace on the email and nothing. Also, my from Gmail account I don't receive any kind of NDR. Anyone have any ideas why a particular email address would be blocked from the system?? Or how???
TIA