Can someone tell me what error MS Exchange servers are generating that the error monitoring process doesn't recognize as "valid" errors to monitor? Seems none of the Exchange errors get onto the monitor list and instead all get sent by listserv as "error report from ..." (maybe some are and I'm just not noticing them as Exchange servers) If there is something that Exchange should be doing, that it isn't, I might be in a position to get it fixed. Alternatively, is Exchange using something that is permitted but not being picked up by the error monitor? Just curious why some of my "error report from ..." messages appear to contain information that users don't exist, etc... which I would have thought would be picked up in the error monitor routines. Same is true of other mail systems as well, putting information in the error messages stating that a user doesn't exist but not being recognized by the error monitor. Forgive my ignorance, and no flames please, I just want to understand...;-] Cheers, Russ R.C. Consulting, Inc. - NT/Internet Security owner of the NTBugTraq mailing list: http://www.ntbugtraq.com