Exchange 2010 - We're not getting all our email.. Where to look?
Sorry for the vague subject line, but I haven't been able to identify anything that shows why we aren't getting all of our email.
I have a PDC and a BDC. Our email subdomain is mail.parkcountyre2.org and nslookup looks like it points to our server just fine. NAT is configured correctly or no email would make it to us.
I did however change our ssl certificate last week, but even if I send an email who is offsite, when they reply they get a bounce back. But I am getting emails from other locations just fine.
Any ideas on where to look are most welcome.