Mail Sending Problems
Dear all, I am in big trouble since two days, my domain users are not able to send mails to some domains like yahoo.com, yahoo.co.in etc. Rest my mail is working fine. I also tried to troubleshoot with SMTPDIAG, please see the error and suggest some solution. SMTPDIAG Details: Searching for Exchange external DNS settings.Computer name is MAIL.VSI 1 has the following external DNS servers:There are no external DNS servers configured. Checking SOA for yahoo.com.Checking external DNS servers.Checking internal DNS servers.SOA serial number match: Passed. Checking local domain records.Checking MX records using TCP: liveindia.tv.Checking MX records using UDP: liveindia.tv.Both TCP and UDP queries succeeded. Local DNS test passed. Checking remote domain records.Checking MX records using TCP: yahoo.com.Checking MX records using UDP: yahoo.com.Both TCP and UDP queries succeeded. Remote DNS test passed. Checking MX servers listed for user@yahoo.com.Connecting to g.mx.mail.yahoo.com [206.190.53.191] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to g.mx.mail.yahoo.com.Connecting to f.mx.mail.yahoo.com [209.191.88.247] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to f.mx.mail.yahoo.com.Connecting to c.mx.mail.yahoo.com [216.39.53.3] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to c.mx.mail.yahoo.com.Connecting to a.mx.mail.yahoo.com [209.191.118.103] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to a.mx.mail.yahoo.com.Connecting to g.mx.mail.yahoo.com [209.191.88.239] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to g.mx.mail.yahoo.com.Connecting to f.mx.mail.yahoo.com [68.142.202.247] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to f.mx.mail.yahoo.com.Connecting to e.mx.mail.yahoo.com [216.39.53.1] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to e.mx.mail.yahoo.com.Connecting to d.mx.mail.yahoo.com [216.39.53.2] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to d.mx.mail.yahoo.com.Connecting to c.mx.mail.yahoo.com [68.142.237.182] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to c.mx.mail.yahoo.com.Connecting to b.mx.mail.yahoo.com [66.196.97.250] on port 25.Error: Expected "220". Server is not accepting connections.Failed to submit mail to b.mx.mail.yahoo.com. Regards Sunil
January 10th, 2008 11:39am

Found thin in google, might give you some tips:http://www.tek-tips.com/viewthread.cfm?qid=1428164&page=10
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January 10th, 2008 9:51pm

Hi, Thanks for reply. But I tried that already and still facing same problem. My Public IP havealready RDNS entry in my ISP DNS , and still my mails to some domains are not going. Regards Sunil
January 13th, 2008 2:19pm

Use www.intodns.com to see where the problem may lie...
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August 1st, 2010 3:21am

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