Hi Bob, Go to www.msexchange.org and www.isaserver.org and you'll find some great tutorials on SMTP relay. HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp <http://www.microsoft.com/isaserver/beta/default.asp> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: Bob Grommes [mailto:bob@xxxxxxxxxxxxxx] Sent: Tuesday, June 29, 2004 10:30 PM To: [ExchangeList] Subject: [exchangelist] SMTP Service http://www.MSExchange.org/ I have a W2K box that runs just the SMTP service. It's used to send out emails to a couple thousand subscribers to our reminder service a couple of times a month. These are emails put into the SMTP server's queue by a custom application that generates them. We don't actually use Exchange or anything else on this box, it's just a stand-alone unit isolated from our corporate network for safety's sake. I'm a bit of an email administration virgin, so forgive me if this is a naive question ... but if I uncheck the box in the SMTP service that allows anonymous logins, so that I'm not an open relay -- then any mail that gets sent to that box gets bounced. How do I allow emails to my own domain in, from all comers, without being an open relay? I want to catch repy-to's and bounces of the mails I'm sending. The bounce error says, "relay refused" but that wouldn't be a relay, it'd be a delivery. I've Googled around but can't find anything that addresses my scenario. --Bob ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: tshinder@xxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist