I am receiving undeliverable mail back after I send an e-mail out to a group list. The recipients are NOT in the group list, nor is this group part of another group list. Why would exchange even attempt to send the e-mail to these recipients? Any help would be greatly appreciated.

Ron, I recently had to track down a similar issue with one of my users... He sent a meeting invite out to a select group of people, and then received NDRs for 2 users he did not include who are not even on the system anymore. Turned out that one of the users he actually sent the invite to had these old users in their delegates and was set to send meeting requests to them.... Point I'm making is that even though you are getting the NDR,maybe someone in the group has something setup that is actually causing the problem. Might want to have them check delegate settingsor forany rules or something that could be causing this.

Lee, Thanks for the idea. I never even thought about that. I will take a look at this and let you know how it turns out. Thanks again.