It's listed there - I was using the server's IP address to test at
dnsreport.com. 68.167.205.203
So Len and Eric both think it's a SurfControl issue, since nslookup and
dnsreport.com seem to think my PTR records are setup properly. And
SurfControl is either caching outdated info or returning transient
errors as permanent errors. Is that about right? Thanks.
Kevin
John T (Lists) wrote:
What is the IP that is being used to connect to other SMTP servers
with? You should then check that IP on www.dnsstuff.com for a direct
report.
**John T**
**eServices For You**
-----Original Message-----
*From:* [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] *On Behalf Of *Kevin Rogers
*Sent:* Thursday, January 12, 2006 8:03 AM
*To:* [email protected]
*Subject:* [IMail Forum] Reverse DNS vs. PTR Record
Is there a difference between reverse DNS records and PTR records? I
always thought they were the same thing. But some of our users were
having trouble sending to a specific domain and when I spoke to the
other company's techs, they said they were refusing our emails because
we have no PTR record.
But I knew we did have one. I told the tech to go to dnsreport.com
and look down in the MX area.
http://www.dnsreport.com/tools/dnsreport.ch?domain=rogersbenefit.com
Shown here:
*PASS*
Reverse DNS entries for MX records
OK. The IPs of all of your mail server(s) have reverse DNS (PTR)
entries. RFC1912 <http://www.DNSstuff.com/pages/rfc1912.htm> 2.1 says
you should have a reverse DNS for all your mail servers. It is
strongly urged that you have them, as many mailservers will not accept
mail from mailservers with no reverse DNS entry. Note that this
information is /cached/, so if you changed it recently, it will not be
reflected here (see the www.DNSstuff.com Reverse DNS Tool
<http://www.dnsstuff.com> for the current data). The reverse DNS
entries are:
203.205.167.68.in-addr.arpa mail.rogersbenefit.com. <http://www.dnsstuff.com/tools/ptr.ch?ip=68.167.205.203> [TTL=1470]
But he told me that they use SurfControl 5.0 SP3 and when he checks
his log files for these transactions where our domain was refused by
theirs - SurfControl came back and said "No PTR Record".
Does anyone know if SurfControl looks up PTR records differently than
dnsreport.com? Anyone ever seen this?
Kevin
--- [This E-mail was scanned for viruses.] To Unsubscribe:
http://www.ipswitch.com/support/mailing-lists.html List Archive:
http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge
Base/FAQ: http://www.ipswitch.com/support/IMail/
---
[This E-mail was scanned for viruses.]
To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html
List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
