Spam's been getting through Postini lately that's addressed to a recipient (email@example.com) in the To: field and in the headers. While this isn't that strange -- we've had spam get through before -- the fact that I can't tell how mail addressed to firstname.lastname@example.org is going to myself and at least one other staff member.
The headers show that it's being received by Postini's gateway and sent to our Exchange Server, but spam or not, that shouldn't effect routing at all. None of us are getting any "regular" mail that's addressed to email@example.com, just these spam messages. Just to make sure I wasn't crazy I telnet'ed into the Exchange Server from another machine and sent a message to firstname.lastname@example.org and none of us got it.
I checked to see if there's delivery options with a forwarder on his Exchange mailbox, but there's none. I also checked to see if some distribution group was setup and there isn't.
Again, all of these checks I've done seem pointless because the
rcpt to determines to what address delivery is attempted. I've turned on diagnostics logging to see if anything odd turns up but the Outlook headers shouldn't "lie", should they? Anything else I'm missing? We're running Exchange 2007 (SBS 2008).