LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices

Reply
 
Search this Thread
Old 04-12-2005, 05:48 AM   #1
overlord73
Member
 
Registered: Apr 2004
Location: ..where no life dwells..
Distribution: RH,FC/SuSE/Debian/HPUX/OSX
Posts: 511

Rep: Reputation: 30
PTR setup correctly?


hi all,

how can I verify, that PTR entry (reverseDNS) for mailserver is setup correctly??
is a

#dig -x <ip.address>

sufficient, if there comes an ANSWER-section back?
 
Old 04-12-2005, 06:06 AM   #2
nmolinos
LQ Newbie
 
Registered: Nov 2003
Location: Richmond, VA
Distribution: Slackware
Posts: 28

Rep: Reputation: 15
yes, or just do an nslookup <IP address> and see if it responds
 
Old 04-12-2005, 07:04 AM   #3
overlord73
Member
 
Registered: Apr 2004
Location: ..where no life dwells..
Distribution: RH,FC/SuSE/Debian/HPUX/OSX
Posts: 511

Original Poster
Rep: Reputation: 30
yes, but my current problem is, that PTR seems to be correct, but AOL´s rDNS-check "kicks" my emails!
<dig -x ip> shows

;; ANSWER SECTION:
xxx.xxx.xxx.xx.in-addr.arpa. 93599 IN PTR host.domain.tld

which is correct! so what is wrong, PTR entry from ISP or mailserver-setup ???

hope someone can help..............
 
Old 04-12-2005, 08:25 PM   #4
nmolinos
LQ Newbie
 
Registered: Nov 2003
Location: Richmond, VA
Distribution: Slackware
Posts: 28

Rep: Reputation: 15
Make sure that the hostname in your mail server greeting matches your host.domain.tld

I would recommend doing a test at http://www.dnsreport.com
 
Old 04-13-2005, 01:32 AM   #5
overlord73
Member
 
Registered: Apr 2004
Location: ..where no life dwells..
Distribution: RH,FC/SuSE/Debian/HPUX/OSX
Posts: 511

Original Poster
Rep: Reputation: 30
thx, but it´s all correct!
...found out, that it must have something to do with the smtp-headers ´X-Mailer´ and/or ´X-Authentication´.
seems to work now, hmm, will have an eye on it........

any further ideas,tipps,.....welcome ;-)
 
Old 04-14-2005, 05:53 AM   #6
overlord73
Member
 
Registered: Apr 2004
Location: ..where no life dwells..
Distribution: RH,FC/SuSE/Debian/HPUX/OSX
Posts: 511

Original Poster
Rep: Reputation: 30
hi guys,
today the same old shit.

again not working with or without headers_removed!
what does a mailserver check when he do a rDNS??
smtp-headers? only if a ptr exists....for what, domain-name?
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
DNS -- PTR -- help understand Fredstar Linux - Newbie 8 09-28-2005 08:37 AM
IPV6 BIND 9.2 PTR Record toraghun Linux - Networking 3 08-18-2005 04:42 AM
Require PTR lookups for postfix paintcheck200 Linux - Networking 1 11-01-2004 04:01 PM
Shuttle PC12 multi-card reader, how to setup it correctly under Linux ParticleHunter Linux - Hardware 1 09-27-2004 03:15 PM
Networking devices, how to setup correctly mrb302 Linux - Newbie 3 05-02-2004 09:15 PM


All times are GMT -5. The time now is 05:16 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration