yesterday, I took the server down and then rearranged all the cables and network switches into a more orderly fashion.
when I plugged everything back in and booted up the server, I started getting a lot of errors and no email was sent. I noticed a root certificate error so I was in mid process of issuing a new certificate in the Exchange Management Console when all of a sudden emails started arriving. all was good I figure until today around noon.
our exchange server went down and 3 reboots later I still couldn't get it up and running. so I opened the exchange management console and emails started delivering again.
before rebooting I cleared the Event Application log so the attached log is everything from when the errors began until everything started working again.
the only thing I did before all this started happening was literally turn the server off, move cables, and turn the server back on.
your help in resolving this is appreciated so we don't have to go through the reboots and EMC every day.