Strange Email behavior after removing Trend Micro Messaging Security
Posted on 2010-01-05
I recently upgraded my Exchange server OS, running Exchange Server 2003, from Server 2000 to Server 2003. Also on this server is Trend Micro's SMB Messaging Security suite which included Scanmail 7.0 for Exchange. After upgrading the OS, it seems the Trend program made some changes to the way it integrates with Exchange and Outlook as messages to many users started getting dumped in the Spam Folder under their mailboxes. These messages were all legitimate. Since it was confusing the users and I needed a quick fix, I removed the Scanmail program to prevent items from getting placed in the Spam Folder. I don't know that I even need that program as we filter our incoming email through ExchangeDefender to weed out spam before it even hits our Exchange server. That is not the weird issue, however. Beginning today, one user is now unable to receive emails in her Outlook client sent from an internal scanner, yet the message gets delivered to her Blackberry. We also have a BES onsite. Before removing the Scanmail program, she would get these messages in both places. I sent a scan from that machine to myself and compared the header to one of the scans she had received prior to this occurrence. The only difference is the following two lines, which seem to reference the scanmail program:
What is going on here? The Exchange System Manager says that all scans are being delivered to her Mailbox store, they're going to her Blackberry, yet she doesn't get them in her Outlook client anywhere. Is there some hidden folder in the Trend directory or Exchange that I'm not seeing?