The port is open on the firewall and I can see the traffic forwarded to the Exchange server but using a port monitor like Active Port I can see that the port is never attached and never opens. Exchange SMTP is still pointed to port 25 however. I've done alittle regedit speelunking but haven't found anything. My guess is Symantec's Brightmail modified IIS to intercept SMTP traffic. -----Original Message----- From: Mark Fugatt [mailto:markfu@xxxxxxxxxxxxx] Sent: Thursday, December 08, 2005 8:29 PM To: [ExchangeList] Subject: Spam:[exchangelist] RE: Exchange 2000 can send but not receive. http://www.MSExchange.org/ I cannot open a connection on port 25 to mail.bdtechnology.org Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Services Organisation Desk: +44 (0)118 909 5630 Mobile: +44 (0)7966 858108 MSN IM: markfu@xxxxxxxxxxxxxxxxx Blog: http://blogs.technet.com/mfugatt -----Original Message----- From: bdT [mailto:bdt@xxxxxxxxxxxxxx] Sent: 09 December 2005 02:20 To: [ExchangeList] Subject: [exchangelist] Exchange 2000 can send but not receive. http://www.MSExchange.org/ The Exchange log shows a message trying to be delivered several times in a row, after that the server hasn't received a single message. Server is SP'd and patched, no error in the event logs. I can send and receive a message from within the LAN, but not getting external mail. Inetinfo.exe is not %100; actually the server is nearly idle. Installed Brightmail yesterday and the server was working fine until an hour ago so it was running about 23 hours without issue. I uninstalled Brightmail anyway. I can telnet to port 25, shows ready. DnsStuff shows my MX record is good (mail.bdtechnology.org. Firewall shows forwarding to the correct IP and on port 25. SMTP queues show green with nothing waiting. I've increased logging to the max and there's not a single error or warning. My MX record responds although slowly mail.bdtechnology.org. Any help is appreciated. Regards. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: markfu@xxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: bdt@xxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx