Thanks for the reply. We use Postfix and SpamAssassin in front of the Exchange environment to "pre-scrub" the inbound mail stream. So what comes through is pretty clean. The users here are not big on mailing lists. I think I am probably the biggest user of mail lists. And I would prepare an FAQ for our intranet for some basic rules to apply to oof messages. I think the bottom line for end users is that the "expected behavior" of an oof message would be that it would notify anyone that emails you that you are not in the office. Nowhere does it say that the default is to only notify inside the company. ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Taylor, George Sent: Friday, June 09, 2006 7:26 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Out-of-Office to Internet - On or Off? There are a few things you need to look at, number one is wether or not you care if people outside of your organization get oof replies. The second is how much spam makes it through your spam filter and hits Exchange. If you allow them your going to reply to all that spam which in turn is going to bounce cause spam never copmes from a ligitamate account and on it goes. Third, do your users subscribe to mailing lists? Most lists if you send an oof reply to the list your kicked, your users will love that. My opinion is don't allow them. George Taylor Systems Programmer Regional Health Inc. ________________________________ From: Ray Dzek [mailto:Ray.Dzek@xxxxxxxxxxxxxxx] Sent: Thursday, June 08, 2006 9:58 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Out-of-Office to Internet - On or Off? Hello Exchange Admins! The itch I can't seem to scratch of the day is... Do we enable Out-Of-Office replies to go out to the internet? Is there a general consensus on this? What are the major drawbacks if any? I know anytime I post to one these lists I get at least 10 OOO messages. Marketing and Engineering want it enabled. Frankly, I don't really care as long as there is no significant impact on the system, so I am turning to you all for a little advice. Thanks in advance. Ray Dzek Network Operations / Helpdesk Supervisor Specialized Bicycle Components