Ok, the what ever is answering at 208.252.155.131 needs to be looked at. Whether this is the firewall or not. If it is the firewall, you need to review those logs. There must be something blocking somewhere. Check for IP address, domain, user and so forth. If I need how to do SMTP commands via telnet I could test it. John Tolmachoff Engineer/Consultant/Owner eServices For You -----Original Message----- From: Abdul Basit [mailto:abasit@xxxxxxxx] Sent: Friday, February 20, 2004 12:23 AM To: [ExchangeList] Subject: RE: [exchangelist] RE: Please Urgent Help ! I need to resolve this issue as early as i can Well, you never answered my second question I posted. Do you have any type of firewall or gateway in front of the server? When did this start happening? What has changed? Did it ever work properly? John Tolmachoff First of all sorry john for missunderstanding your question. 1. It was working fine last month but from last three weeks we are not getting it and they have noticed today this problem. 2. We shift our exchange server from old hardware to new server. We dismounted the stores and copy 4 main databases to new server run the domainpre , forest prep and disaster recovery and every thing is working fine. 3. We do have Checkpoint firewall infront of our email server. We are forwarding any SMTP/Http port 25 traffic to our Exchange 2000 server. We are also using the Network Associate Spam software but i have put their address in white list so it is sure that spam software is not blocking them. Basit -----Original Message----- From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] Sent: Fri 2/20/2004 2:00 AM To: [ExchangeList] Cc: Subject: [exchangelist] RE: Please Urgent Help ! I need to resolve this issue as early as i can http://www.MSExchange.org/ Well, you never answered my second question I posted. Do you have any type of firewall or gateway in front of the server? When did this start happening? What has changed? Did it ever work properly? John Tolmachoff Engineer/Consultant/Owner eServices For You > -----Original Message----- > From: Abdul Basit [mailto:abasit@xxxxxxxx] > Sent: Friday, February 20, 2004 12:24 AM > To: [ExchangeList] > Subject: [exchangelist] Please Urgent Help ! I need to resolve this issue > as early as i can > > http://www.MSExchange.org/ > > Hi all, > > We are unable to receive the email from one specific email server.They are > reieving that our server is droping the connection.These people are > actually one of our partner company so that reason we have to resolve this > issue as early as we can. As per my side i have checked many websites and > read alot of articles. What I did I set the loging by setting the enable > loging property on the SMTP server general property page. I can see entry > if i send the email from yahoo/hotmail account but couldn't succeed to > find any thing about their server. But those people are getting logs in > which it shows our server is droping the connection. their server logs are > as bellow. > > Feb 19 13:14:34 area51 postfix/pickup[26823]: CA63419204: uid=104 > from=<db> > Feb 19 13:14:34 area51 postfix/cleanup[26891]: CA63419204: > message-id=<20040219181434.CA63419204@xxxxxxxxxxxxxxxx> > Feb 19 13:14:34 area51 postfix/qmgr[6871]: CA63419204: > from=<db@xxxxxxxxx>, > size=305, nrcpt=1 (queue active) > Feb 19 13:14:57 area51 postfix/smtp[26892]: connect to > mail.leye.com[208.252.155.131]: server dropped connection (port 25) > Feb 19 13:14:57 area51 postfix/smtp[26892]: CA63419204: > to=<abasit@xxxxxxxx>, relay=none, delay=23, status=deferred (connect to > mail.leye.com[208.252.155.131]: server dropped connection > > I hope some one of u can help me out. > Thanks in advance > > > ------------------------------------------------------ > 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: > 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 > ------------------------------------------------------ ------------------------------------------------------ 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: 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 ------------------------------------------------------