Misconfigured OSNN DNS Records

#1
Was just perusing my rejected mail log and came upon this:

Feb 2 00:38:56 reaper postfix/smtpd[30895]: NOQUEUE: reject_warning: RCPT from
unknown[70.84.96.188]: 550 Client host rejected: cannot find your hostname, [70.
84.96.188]; from=<xxxxxxxxxx@osnn.net> to=<m.napper@digital-euphoria.net> pr
oto=SMTP helo=<cryptic.osnn.net>

someone needs to make 70.84.96.188 reverse to cryptic.osnn.net not 188.70-84-96.reverse.theplanet.com :D
 

X-Istence

*
Political User
#2
Someone needs to set postfix to not deny just because it is not set to mail.osnn.net yet.

Soon it will start sending from mail.osnn.net with proper RDNS, but until the blokes at theplanet get it set up, i can't do anything about it.
 

X-Istence

*
Political User
#7
mailexchange.osnn.net correctly resolves to 70.84.96.188

and 70.84.96.188 resolves to mailexchange.osnn.net

Code:
; <<>> DiG 9.2.4 <<>> mailexchange.osnn.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23720
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;mailexchange.osnn.net.         IN      A

;; ANSWER SECTION:
mailexchange.osnn.net.  86357   IN      A       70.84.96.188

;; AUTHORITY SECTION:
osnn.net.               172757  IN      NS      a.ns.osnn.net.
osnn.net.               172757  IN      NS      b.ns.osnn.net.

;; Query time: 91 msec
;; SERVER: 12.96.160.115#53(12.96.160.115)
;; WHEN: Fri Mar 18 09:54:50 2005
;; MSG SIZE  rcvd: 90
Code:
; <<>> DiG 9.2.4 <<>> 188.96.84.70.in-addr.arpa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1834
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;188.96.84.70.in-addr.arpa.     IN      A

;; AUTHORITY SECTION:
96.84.70.in-addr.arpa.  86400   IN      SOA     ns1.theplanet.com. support.theplanet.com. 2005031701 3600 3600 86400 86400

;; Query time: 1 msec
;; SERVER: 12.96.160.115#53(12.96.160.115)
;; WHEN: Fri Mar 18 09:55:45 2005
;; MSG SIZE  rcvd: 104
 

Geffy

OSNN Veteran Addict
#10
Electronic Punk said:
is that good? :eek:
means some mailservers wont deny mail from you cause the reverse dns of the mailserver doesnt match the domain the email is being sent from. Truthfully though most just complain if they cant find any reverse dns but some are more finiky than others
 

X-Istence

*
Political User
#12
Code:
cryptic# nslookup 70.84.96.188
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
188.96.84.70.in-addr.arpa       name = mailexchange.osnn.net.

Authoritative answers can be found from:
 

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