The easiest way is to require authentication. To best guard your box from relay, do this on the SMTP virtual server on an Exchange server that is not exposed to the Internet and have your users direct their SMTP clients there. If you can't do that, make sure you enforce strong password requirements.
Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Aldrich Sent: Thursday, August 25, 2005 11:35 AM To: Exchange Discussions Subject: selectively enable routing in Exchange 5.5 Can someone here point me to an FAQ or how-to on enabling routing on a selective basis in Exchange 5.5? I'm wanting to allow a handful of machines to use non-Outlook clients to send email to the outside world, and right now that's being blocked by the anti-routing provisions... At the same time, I don't want us to become a spam relay. Any help would be appreciated... I'm NOT an Exchange admin, I just got it dumped on me and am having to learn how to do all this as I go. Thanks John _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
