Are you tied into any of the RBL's, in addition to using the Vamsoft Open Relay Filter? If so, that's probably why, as hanafos.com is on the FiveTen RBL. Can you add the domain name to the white-list, instead of the IP addy?
By the "entire IP range...not to be checked", what range are you talking about? This is what I get from NSlookup: hanafos.com MX preference = 10, mail exchanger = mhr.hanafos.com hanafos.com MX preference = 50, mail exchanger = mhr01.hanafos.com hanafos.com MX preference = 50, mail exchanger = mhr02.hanafos.com hanafos.com MX preference = 50, mail exchanger = mhr03.hanafos.com mhr01.hanafos.com internet address = 211.202.13.156 mhr02.hanafos.com internet address = 211.202.13.157 mhr03.hanafos.com internet address = 211.202.13.158 -----Original Message----- From: Freddie Soerensen [mailto:[EMAIL PROTECTED] Sent: Friday, June 20, 2003 5:12 AM To: Exchange Discussions Cc: Hostmaster Subject: Message 451 4.4.2 Bad connection (connection reset) Hi list We have a problem which we have been struggling with for a couple of weeks now, hope somebody here can help. We have E2k SP3 on Win2k SP3 with all patches. We can send email to everywhere in the world and we can receive from everywhere in the world, except from the domain hanafos.com (211.202.13.0 - 211.202.13.255). Whenever they try to send us an email they get following message : ============================================================== FIRST : Fri, 20 Jun 2003 19:11:56 KST +0900 LAST : Fri, 20 Jun 2003 19:32:02 KST +0900 RETRY COUNT : 3 LOOP COUNT : 0 REMOTE SERVER RESPONSE : 451 4.4.2 Bad connection (connection reset) ============================================================== This IP range is not blocked in the Connection control of the virtual SMTP server and we are not performing reverse DNS lookup on incoming connections. We are using Vamsoft Open Relay Filter and we have added the entire IP Range to the IP ranges not to be checked. Funny thing is that f.ex mo02.hanafos.com (211.202.13.144) does not have reverse DNS so maybe this could still be the problem ? Does anybody know how to find out or how to solve this issue. It is really driving us crazy Thanks in advance Freddie -------------------------------------------------- Freddie Soerensen Conares Metal Supply Limited Tel : +423 235 5040 [EMAIL PROTECTED] www.conares.com "There are three kinds of death in this world. There's heart death, there's brain death, and there's being off the network." _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]

