On Wed, 1 Sep 2004 13:44:17 -0600, NPerez <nperez@xxxxxxxxxxxxxxx> wrote: > http://www.MSExchange.org/ > > Windows 2k & Exchange 2k > I was looking through my queues folder under my SMTP folder in my Exchange > admin, and I found many domains that I do not recognized (like yeehaww.au, > haang.de, and a bunch of others). I don't think my users are sending > emails to these domains. How do they get there and how can I prevent it? Your configuration has one or a combination of one of the following problems: A) Your server is an open relay. *http://www.msexchange.org/tutorials/MF005.html *Search for how to close open relay in Exchange on the Internet. B) A network device, probably a computer part of your LAN, has become infected with a virus and is relaying through the Exchange Server. *Run up to date AV software on all network connected devices. C) Your server is infected with a virus. *Do you run and scan your server with up-to-date AV software? D) Your users are sending out SPAM on purpose. :) *Highly unlikely, but anything is possible. Hope this helps. ...D