1. Dunno cause I have never operated a mail server without proper
reverse DNS (nor any server for that matter).
2. Yes I do. Proper standard should include proper reverse. As a
general rule mail servers without reverse I have encountered are sending
spam OR improperly configured and
1. Yes - per AOL SMTP header.
2. Yes. But if it the sending host has any pointer (match or not) then pass.
John
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Beckstrom
Sent: Tuesday, April 22, 2008 9:23 AM
To: declude.junkmail@declude.com
1) If a mail server is configured without a reverse DNS pointer, is
enough to prevent email from reaching AOL, Yahoo, Hotmail, etc?
AOL indicates they will do this, on occasion I have seen this, but not
all the time.
2) Do you block email coming from mail servers with no reverse DNS?
No,
server
ending .197 and our office IP I saw being insrted in the headers.
-Don
- Original Message -
From: Dave Doherty [EMAIL PROTECTED]
To: Declude.JunkMail@declude.com
Sent: Monday, March 21, 2005 10:43 PM
Subject: Re: [Declude.JunkMail] OT: Reverse DNS and 554 Denied
Hi, Don
Hi, Don-
news.holisticmoms.org reports its IP address as 65.57.241.196
65.57.241.196 reports its name as vacant.compbiz.net.
You should have your provider set up a reverse lookup (pointer) record for
65.57.241.196 that points to news.holisticmoms.org instead of
vacant.compbiz.net
-d
-
Dan,
I can't see neither an increased number of spam in our review range nor any
significant changes in the ip4r-responses. (see attached file)
Markus
attachment: compare_ip4r.gif
I was wondering if it was possible to use the REVDNS on a per user basis.
Unfortunately, this is not possible -- whitelisting based on the reverse
DNS entry is currently only available as a global option.
We have a client who wishes to recieve coolsavings.com newsletter while
most others
I asked my ISP to provide reverse DNS entries for my block of IP's and they
replied:
If you want us to create the DNS records, you need to tell us
which IP points to which fully-qualified hostnames. These hostnames
need to match actual forward DNS record too.
Are they right do I need FQDNs for
Jim,
Create a reverse zone in DNS that covers the IP address used in IMail.
i.e. we have
xxx.xxx.xxx.xxx.in-addr.arpa
With entries that cover from xxx-xxx-xxx-0.domain to
xxx-xxx-xxx-255.domain
This ensures that we have a reverse DNS for all possible IPs on that
class C.
David
Jim, only one PTR record per IP address needed.
Should only be for the mail record domain.
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
---
[This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)]
: [Declude.JunkMail] No reverse dns
Jim, only one PTR record per IP address needed.
Should only be for the mail record domain.
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
---
[This E-mail was scanned for viruses by Declude Virus
This shouldn't fail REVDNS as there is a REVDNS entry. Maybe HELOBOGUS.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Jim Rooth
Sent: Thursday, January 09, 2003 1:24 PM
To: [EMAIL PROTECTED]
Subject: RE: [Declude.JunkMail] No reverse dns
]
Subject: RE: [Declude.JunkMail] No reverse dns
Jim, only one PTR record per IP address needed.
Should only be for the mail record domain.
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
---
[This E-mail was scanned for viruses
: Thursday, January 09, 2003 12:27 PM
To: [EMAIL PROTECTED]
Subject: RE: [Declude.JunkMail] No reverse dns
This shouldn't fail REVDNS as there is a REVDNS entry. Maybe HELOBOGUS.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Jim Rooth
Sent
Of Jim Rooth
Sent: 09 January 2003 18:24
To: [EMAIL PROTECTED]
Subject: RE: [Declude.JunkMail] No reverse dns
Problem is there are 57 domains using one ip address. Reverse lookup
shows
the domain the server is and not the other domains. But if you do a
reverse lookup
There is no need to have a PTR for mail.standardhardware.com as that is not
an actual MX record. Yes, it is there, but it is not proper as
mail.standardhardware.com is a cname. Not good.
http://www.dnsstuff.com/tools/ptr.ch?ip=168.75.225.197
Answer:
No PTR records exist for 168.75.225.197. [Neg
]] On Behalf Of Jim Rooth
Sent: 09 January 2003 18:36
To: [EMAIL PROTECTED]
Subject: RE: [Declude.JunkMail] No reverse dns
Possibly...the error my client received just said no reverse dns but it
does have one even if it doesn't match the wording. Thanks.
Jim Rooth
Klotron, Inc.
214.244.0979
[EMAIL
John,
Let's get the names straight now...
:))
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
---
[This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)]
---
This E-mail came from the
Possibly...the error my client received just said no reverse dns but it does
have one even if it doesn't match the wording. Thanks.
Just to clarify, the REVDNS test in Declude JunkMail only checks for the
presence of a reverse DNS entry, and doesn't care what the actual entry is.
There are
Of David Lewis-Waller
Sent: Thursday, January 09, 2003 12:37 PM
To: [EMAIL PROTECTED]
Subject: RE: [Declude.JunkMail] No reverse dns
John,
dnstsuff shows that 168.75.225.197 (ip for mail.standardhardware.com)
doesn't have a PTR record. Set one up and you shouldn't fail REVDNS.
http://www.dnsstuff.com
Thanks to all. I have sent a request to the ISP to set up PTR record and
hopefully that will solve this issue. Appreciate the help from everyone.
Now, if we were still driving...
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
: [Declude.JunkMail] No reverse dns
Thanks to all. I have sent a request to the ISP to set up PTR record and
hopefully that will solve this issue. Appreciate the help from everyone.
Now, if we were still driving...
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA
This sucker would be flying down the boulevard!
:))
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
---
[This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)]
---
This E-mail came from the
]
Sent: Friday, February 08, 2002 8:15 AM
Subject: Re: [Declude.JunkMail] No Reverse DNS
I got this from a customer on my service, using my mail server... We have
reverse DNS...
Why did we get this message?
Most likely because you don't really have reverse DNS.
A lot of people set up
: [Declude.JunkMail] No Reverse DNS
I got this from a customer on my service, using my mail server... We have
reverse DNS...
Why did we get this message?
Most likely because you don't really have reverse DNS.
A lot of people set up a reverse DNS entry in their DNS servers, and
assume
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