I have a subscription set up to email to an exchange 2010 distribution group. An alert comes in and the members never see an email. So I add the individual members to the subscription, the next alert comes in and they receive it. I can send an email from outlook to the exact same distribution group address and they all receive it. Does SCOM 2007 R2 have issues with distribution groups? I don't see any errors or events in the logs pertaining to why they aren't being sent. Any thoughts?

probabily could be a problem with the exchange DG, because by default you can send the email only from authenticated users. check the settings of DG into exchange 2010 console SS.Net MCITP Enterprise Administrator - MCTS Virtualization - Operations Manager 2007 - Exchange Server 2007 - MCSE-M S.Net Blog WindowServer.it WindowServer.it Learning Portal

That's exactly what it was. Thank you.