Hi.
A few days ago, I began receiving complaints from multiple users that documents they scanned and sent to e-mail via a couple of internal printers were suddenly being sent to users' Junk e-mail folders rather than to the Inbox (as had been the case since forever up until this point).
I have a mix of Outlook 2003 and 2010 users on my network, and it so happens that only the Outlook 2010 users seem to be affected. Also, I know from looking at the Info bar on individual e-mail messages that it's Outlook filtering them rather than my Exchange 2010 server's spam filter. Finally, I know that there was an Outlook 2010Junk E-mail Filter Update released on Tuesday 12/11, which pretty much seems to correspond to when this problem began, which is Wednesday the 12th. I have SBS 2011 Standard, so the update was sent to all relevant clients via WSUS the night of its release.
So assuming my "the filter update caused the problem" theory is correct (and feel free to offer alternatives if you think I'm off-base) my question is: how can I best determine how/why this update suddenly decided these legitimate internal e-mails should be flagged, and make it stop doing that?
I realize adding the e-mail addresses (there are two addresses, since each printer has it's own, and both are being blocked) to the safe senders list is one way to fix this, but it doesn't seem like the best way. I don't want to have to touch all the clients, and I'd like to understand why an filter update would suddenly start blocking previously allowed mail. This is the first time in 15 months of update that this as happened, but I have a feeling it won't be the last.
Any suggestions would be greatly appreciated.
Joe
