Message: 5 Date: Tue, 22 Sep 2015 14:24:57 -0500
From: Lyle Giese <[email protected]>
To: [email protected]
Subject: Re: How to Fix Reverse DNS?
Message-ID: <[email protected]>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"
You don't fix this, AT&T needs to be told to fix it. I assume
you have static IPv4 addresses? You don't seem to have an MX
record at all.
The way AT&T will update this is if your MX record(or backup
MX record) points to this ip address and then they should honor a
request to set the reverse lookup for you.
Lyle Giese
LCR Computer Services, Inc.
On 9/22/2015 2:08 PM, Ron Wingfield wrote:
RE: BIND v9.10.2
I have recently converted from a "legacy" DSL service to AT&T's
U-verse . . .has been a painful experience. Heretofore, the following
from /var/named/named.conf
zone "233.202.162.in-addr.arpa" {
type master;
file "./zonefiles/db.233.202.162.rev";
};
. . .and the contents of the zone configuration file as follows:
$TTL 3h
@ IN SOA archaxis.net. root.archaxis.net. (
2015080601 ; Serial
3h ; Refresh
1h ; Retry
1w ; Expire
1h ) ; Negative cashing TTL
IN NS ns1.archaxis.net.
IN NS ns2.archaxis.net.
1 IN PTR archaxis.net.
1 IN PTR ns1.archaxis.net.
1 IN PTR ns2.archaxis.net.
AT&T (in all of their surliness) is rejecting email from my SMTP
(SendMail) server and issuing the following typical complaint:
----- The following addresses had permanent fatal errors -----
</addressee-changed/@sbcglobal.net>
(reason: 550 5.7.1 Connections not accepted from servers without a valid sender domain.alph161 Fix reverse DNS for 162.202.233.81)
----- Transcript of session follows -----
... while talking to al-ip4-mx-vip1.prodigy.net.:
MAIL From:<[email protected]>
<<< 550 5.7.1 Connections not accepted from servers without a valid sender domain.alph161 Fix reverse DNS for 162.202.233.81
554 5.0.0 Service unavailable
I am at a loss for resolution of this problem. How am I supposed to
"Fix reverse DNS"? The configuration scenario previously worked since
2002. Can someone suggest a fix?
Thanks,
Ron W.
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RE:
You don't fix this, AT&T needs to be told to fix it. I assume you have
static IPv4 addresses? You don't seem to have an MX record at all.
The way AT&T will update this is if your MX record(or backup MX record)
points to this ip address and then they should honor a request to set
the reverse lookup for you.
Yes, I have static IPs.
I do have an MX record as follows (in the zone file) . . .plus the
SPF TXT record added today to make Google happy:
archaxis.net.
IN A 123.456.789.123
|<----I had failed to include this period (for
some reason probably lost when edit-adding the SPF TXT)
archaxis.net. IN MX 10 archaxis.net.
archaxis.net. IN TXT "v=spf1 a
include:_spf.google.com ~all"
After correction of the
missing period, dig now returns the following:
#
dig -t MX archaxis.net
;
<<>> DiG 9.10.2 <<>> -t MX
archaxis.net
;; global
options: +cmd
;; Got answer:
;;
->>HEADER<<- opcode: QUERY, status: NOERROR, id:
41951
;; flags: qr
rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT
PSEUDOSECTION:
; EDNS:
version: 0, flags:; udp: 512
;; QUESTION
SECTION:
;archaxis.net.
IN MX
;; AUTHORITY
SECTION:
archaxis.net.
328 IN SOA archaxis.net.
rtwingfield.archaxis.net. 2015092201 10800 3600 604800 3600
;; Query time:
39 msec
;; SERVER:
8.8.8.8#53(8.8.8.8)
;; WHEN: Tue
Sep 22 16:29:21 CDT 2015
;; MSG SIZE
rcvd: 89
. . .but still
fails. Apparently, this is indeed an issue to take up with
AT&T.
Thanks again to all, and Lyle Giese
Ron W.
|
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