[ExchangeList] Re: Reverse Lookup 2

  • From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 17 May 2006 11:13:30 -0400

How do go about fixing that? I didn't design the network originally, I just 
walked into it. 


From: exchangelist-bounce@xxxxxxxxxxxxx on behalf of Jensen, Douglas
Sent: Wed 17/05/2006 10:10 AM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Reverse Lookup 2

Your server  is claiming to be asnmail.autosoldnow.local when it tries to send 
email. When the other email system tries to look up the ip address via a 
reverse dns lookup the ip address lookup returns mail.autosoldnow.com.  These 
two names are clearly not the same so the other email server will think you are 
a spammer.
You need your exchange server to claim it is mail.autosoldnow.com when it tries 
to send mail not asnmail.autosoldnow.local 

        WARNING: One or more of your mailservers is claiming to be a host other 
than what it really is (the SMTP greeting should be a 3-digit code, followed by 
a space or a dash, then the host name). If your mailserver sends out E-mail 
using this domain in its EHLO or HELO, your E-mail might get blocked by 
anti-spam software. This is also a technical violation of RFC821 
<http://www.dnsstuff.com/pages/rfc821.htm>  4.3 (and RFC2821 
<http://www.dnsreport.com/tools/rfc.ch?detail=2821>  4.3.1). Note that the 
hostname given in the SMTP greeting should have an A record pointing back to 
the same server. Note that this one test may use a cached DNS record.
        MAIL.autosoldnow.com claims to be non-existent host 
        220 ASNMAIL.autosoldnow.local Microsoft ESMTP MAIL Service, Version: 
6.0.3790.1830 ready at Wed, 17 May 2006 10:04:59 -0400 

Douglas Jensen
Douglas.Jensen@xxxxxxxxxxxxx <mailto:Douglas.Jensen@xxxxxxxxxxxxx> 
Voice (952) 402-9821
Fax (952) 402-9815
Network Administrator
Scott Carver Dakota CAP Agency, Inc.
712 Canterbury Road
Shakopee, MN 55379 



From: exchangelist-bounce@xxxxxxxxxxxxx 
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew English
Sent: Wednesday, May 17, 2006 8:37 AM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Reverse Lookup 2

Can someone check to see if autosoldnow.com reverse lookup is properly 
configured? It says on dnsstuff, and dnsreport that reverse lookup works but 
that it points to mail.autosoldnow.com, when I look up my other mail servers 
most of them point to there-IP.providername.com 
I am asking because emails are still backing up in Exchange. :(

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