DNS Problem

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  • Start date Start date
G

Guest

I have a rather weird issue that I can't seem to resolve. When anyone tries
to email a receipient that is (e-mail address removed) email address the email gets
bounced back.

From: System Administrator
To: Recipient
Sent: Tuesday, September 05, 2006 1:54 PM
Subject: Undeliverable: Delivery failure (Recipient)
Your message did not reach some or all of the intended recipients.

Subject:

The following recipient(s) could not be reached:

Recipient Address on 9/5/2006 1:54 PM
The message cannot be delivered due to a configuration error on
the server. Please contact your Administrator.
< Antivirus/SPAM server address #5.3.0>

Are external DNS and MX records are hosted by an outside company. What do I
need to do to reolsve this issue. From some initial research I think the
issue might be that a reverse lookup failure is causing the email to be
rejected. I have heard some email servers will reject email is a reverse
lookup cannot be performed.

Does this sound correct or am I totally off base. Does anyone have an idea
on what to do to resolve this and enable successful mail delivery to aol.com
adresses.
 
George said:
I have a rather weird issue that I can't seem to resolve. When
anyone tries to email a receipient that is (e-mail address removed) email
address the email gets bounced back.

From: System Administrator
To: Recipient
Sent: Tuesday, September 05, 2006 1:54 PM
Subject: Undeliverable: Delivery failure (Recipient)
Your message did not reach some or all of the intended recipients.

Subject:

The following recipient(s) could not be reached:

Recipient Address on 9/5/2006 1:54 PM
The message cannot be delivered due to a configuration
error on the server. Please contact your Administrator.
< Antivirus/SPAM server address #5.3.0>

Are external DNS and MX records are hosted by an outside company.
What do I need to do to reolsve this issue. From some initial
research I think the issue might be that a reverse lookup failure is
causing the email to be rejected. I have heard some email servers
will reject email is a reverse lookup cannot be performed.

Does this sound correct or am I totally off base. Does anyone have
an idea on what to do to resolve this and enable successful mail
delivery to aol.com adresses.
Click to expand...

AOL is one of these, if there is no PTR for the mail server IP AOL will
reject mail coming from it. 99.9% of the time, it is your ISP that has to
create the PTR records. AOL also likes to see an SPF record too, but as of
the last I know, it is not required for delivery, unless it is a hard fail.
To clarify, a hard fail is when an SPF record is present and the mail server
is not authorized in the SPF to deliver mail for your domain.


--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
http://support.wftx.us/
http://message.wftx.us/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================
 
What is an SPF record? Do you think it would be a good idea to have my ISP
add it? Do you think AOL will require it in the future.
 
George said:
What is an SPF record?
Click to expand...
Sender Policy Framework, http://www.openspf.org/

Do you think it would be a good idea to have my ISP add it?

Does your ISP host your public DNS zone?
The SPF record goes in the zone for each domain name, if your ISP has your
public zone then they will need to add it.

Do you think AOL will require it in the future.
I can't see into the future, but I add it required or not, it can help
prevent someone "Spoofing" mail from your domain.


--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
http://support.wftx.us/
http://message.wftx.us/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================
 
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