rDNS verification fails due to SMTP header mismatch (Full Version)

All Forums >> [Microsoft Exchange 2007] >> Message Routing



Message

itek4bux -> rDNS verification fails due to SMTP header mismatch (20.Jan.2009 5:17:48 PM)

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



John Weber -> RE: rDNS verification fails due to SMTP header mismatch (20.Jan.2009 7:05:23 PM)

is that the IP listed for your mx record?

did you restart the transport?



itek4bux -> RE: rDNS verification fails due to SMTP header mismatch (20.Jan.2009 7:11:43 PM)

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.



Zulan -> RE: rDNS verification fails due to SMTP header mismatch (9.Feb.2009 10:23:51 AM)

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



Page: [1]