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troubleshooting Question

Exchange 2010 refused connection from sender

Avatar of patcheah
patcheahFlag for Malaysia asked on
6 Comments1 Solution1097 ViewsLast Modified:
Dear Expert,

I have a customer that cant send email to us recently, the log they provided state below,

2013-12-24 17:29:22,OUTBOUND,jmchen@efgh.com.tw<mailto:jmchen@efgh.com.tw>(,joyce@abc,com<mailto:joyce@abc,com>(101.99.x.x-mail.abc,com<http://101.99.x.x-mail.abc,com>),967613063,22545,QUEUED,601,Deferred: Connection refused by mail.abc,com<http://mail.abc,com>
2013-12-24 17:29:22,OUTBOUND,miahsieh@efgh.com.tw<mailto:miahsieh@efgh.com.tw>(,joyce@abc,com<mailto:joyce@abc,com>(101.99.x.x-mail.abc,com<http://101.99.x.x-mail.abc,com>),513374723,53521,QUEUED,601,Deferred: Connection refused by mail.abc,com<http://mail.abc,com>
2013-12-24 17:29:22,OUTBOUND,jmchen@efgh.com.tw<mailto:jmchen@efgh.com.tw>(,joyce@abc,com<mailto:joyce@abc,com>(101.99.x.x-mail.abc,com<http://101.99.x.x-mail.abc,com>),914463265,13973,QUEUED,601,Deferred: Connection refused by mail.abc,com<http://mail.abc,com>
2013-12-24 17:29:22,OUTBOUND,miahsieh@efgh.com.tw<mailto:miahsieh@efgh.com.tw>(,joyce@abc,com<mailto:joyce@abc,com>(101.99.x.x-mail.abc,com<http://101.99.x.x-mail.abc,com>),1285071653,25209,QUEUED,601,Deferred: Connection refused by mail.abc,com<http://mail.abc.com>

I did check their domain name, the spf and reversed dns is not found.

could it be the cause?

remarks: only this customer is having problem to send email to us

Avatar of Marcus Bointon
Marcus BointonFlag of France image

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