My Exchange 2007 box (transport,mailboxes) has GFI MailEssentials running on it. The logs are filled with emails like these (like every 1 second):
Sender: microsoftexchange329e71ec88ae4615bbc36ab6ce41109e@mydomain.com
Recipient: myexchange2007server-sa@mydomain.com
Subject: N/A
Now, I do have an Exchange 2010 server in my org., but it's not hosting any mailboxes, nor it's part of a public folder replication. I plan on moving mailboxes from 2007 to 2010 and then demote my 2007. But right now I just can't figure out what is going on with these emails, what are they for. GFI's tech support say it's out of their scope. Exchange antispam agents are disabled on my 2007 box. The agentlogs don't show these emails, only GFI's logs. All Queues are empty, and no pending NDRs are visible. Restarting the Exchange Transport service seems to fix the issue for a while, then it comes back.
Any ideas?
