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rDNS verification fails due to SMTP header mismatch
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rDNS verification fails due to SMTP header mismatch - 20.Jan.2009 5:17:48 PM
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itek4bux
Posts: 2
Joined: 20.Jan.2009
Status: offline
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I am getting undeliverable emails due to failed rDNS/DNS verification from some mail servers. Although I believe rDNS is configured correctly, I believe the problem lies with my Exchange 2007 SMTP Headers. They do not match up with the public DNS record (mail.mycompany.net) and instead reflect my internal mailserver's name (servername.mycompany.local).
Every post I've read says that to update the SMTP Header all I have to do is to go into the EMC and change thd FQDN field of the Send connector. Well, I've done this but my SMTP Headers are still incorrect.
mxi2p.craigslist.org #554 5.7.1 <unknown[70.98.246.21]>: Client host rejected: rDNS/DNS validation failed. Please setup matching DNS and rDNS records: http://bind8nt.meiway.com/itsaDNSmess.cfm ##
Original message headers:
Received: from servername.mycompany.local ([fe80::e87d:6957:3294:1337]) by
servername.mycompany.local ([fe80::e87d:6957:3294:1337%10]) with mapi; Tue,
20 Jan 2009 09:13:58 -0800
From: myemailaddress
To: someemailaddress
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RE: rDNS verification fails due to SMTP header mismatch - 20.Jan.2009 7:05:23 PM
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John Weber
Posts: 1236
Joined: 20.Apr.2005
From: Portland, Oregon
Status: offline
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is that the IP listed for your mx record?
did you restart the transport?
_____________________________
John Weber [Lync MVP] http://tsoorad.blogspot.com
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RE: rDNS verification fails due to SMTP header mismatch - 20.Jan.2009 7:11:43 PM
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itek4bux
Posts: 2
Joined: 20.Jan.2009
Status: offline
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quote:
ORIGINAL: John Weber
is that the IP listed for your mx record?
did you restart the transport?
John, good questions and yes, that IP is our MX record and I have cycled the Transport Service.
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RE: rDNS verification fails due to SMTP header mismatch - 9.Feb.2009 10:23:51 AM
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Zulan
Posts: 16
Joined: 13.Mar.2003
From: Sweden
Status: offline
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Same problem, no solution, have you solved it yet?
quote:
ORIGINAL: itek4bux
I am getting undeliverable emails due to failed rDNS/DNS verification from some mail servers. Although I believe rDNS is configured correctly, I believe the problem lies with my Exchange 2007 SMTP Headers. They do not match up with the public DNS record (mail.mycompany.net) and instead reflect my internal mailserver's name (servername.mycompany.local).
Every post I've read says that to update the SMTP Header all I have to do is to go into the EMC and change thd FQDN field of the Send connector. Well, I've done this but my SMTP Headers are still incorrect.
mxi2p.craigslist.org #554 5.7.1 <unknown[70.98.246.21]>: Client host rejected: rDNS/DNS validation failed. Please setup matching DNS and rDNS records: http://bind8nt.meiway.com/itsaDNSmess.cfm ##
Original message headers:
Received: from servername.mycompany.local ([fe80::e87d:6957:3294:1337]) by
servername.mycompany.local ([fe80::e87d:6957:3294:1337%10]) with mapi; Tue,
20 Jan 2009 09:13:58 -0800
From: myemailaddress
To: someemailaddress
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