Results 1 to 5 of 5

Thread: [SOLVED] Problem to connect to external MTA

  1. #1
    exalab is offline Member
    Join Date
    Aug 2010
    Posts
    13
    Rep Power
    5

    Default [SOLVED] Problem to connect to external MTA

    Hi, I have a problem with the external MTA. I send mail through an external mta, any external mta enter into the administration GUI give me this error:

    "Name service error for name = mail.cs.xxxxx.it type = MX: Host not found, try again)"

    But from the console everything seems to work correctly, the DNS was configured following Split DNS - Zimbra :: Wiki
    If queries DNS i have:

    [Root @ mail ~] # dig mail.cs.xxxxx.it

    , <<>> Dig 9.3.6-P1-Redhat-9.3.6-4.P1.el5_4.2 <<>> mail.cs.interbusiness.it
    ;; Global options: printcmd
    ;; Got answer:
    ; ->> HEADER <<- opcode: QUERY, status: noerror, id: 46320
    ;; Flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

    ;; QUESTION SECTION:
    ; Mail.cs.xxxxx.it. IN A

    ,; ANSWER SECTION:
    mail.cs.xxxxx.it. 1686 IN A 85.37.16.62

    ;; Query time: 1 ms
    ;; SERVER: 172.16.100.10 # 53 (172.16.100.10)
    ;; WHEN: Thu Sep 23 09:35:48 2010
    ;; MSG SIZE rcvd: 58

    If ping:

    PING mail.cs.interbusiness.it (85.37.16.62) 56(84) bytes of data.

    --- mail.cs.interbusiness.it ping statistics ---
    6 packets transmitted, 0 received, 100% packet loss, time 5008ms

    The DNS resolves properly address. The MTA is working properly, I have another installation of Zimbra which is currently working with this MTA

    Can anyone help me? I tried the other threads but have not found anything about it

  2. #2
    exalab is offline Member
    Join Date
    Aug 2010
    Posts
    13
    Rep Power
    5

    Default

    OK, i have solved.
    Uncheck "Activate DNS lookup" options in MTA tab in global configuration and all works fine.

    Stefano

  3. #3
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,566
    Rep Power
    57

    Default

    Quote Originally Posted by exalab View Post
    Hi, I have a problem with the external MTA. I send mail through an external mta, any external mta enter into the administration GUI give me this error:

    "Name service error for name = mail.cs.xxxxx.it type = MX: Host not found, try again)"

    But from the console everything seems to work correctly, the DNS was configured following Split DNS - Zimbra :: Wiki
    If queries DNS i have:
    If you have used the Split DNS set-up and your server is on a LAN IP (i.e. behind a NAT router) then you should have your DNS pointing to the LAN IP not your public IP (as shown in your output above). Is that what you have?
    Last edited by phoenix; 09-29-2010 at 08:55 AM.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  4. #4
    exalab is offline Member
    Join Date
    Aug 2010
    Posts
    13
    Rep Power
    5

    Default

    Quote Originally Posted by phoenix View Post
    If you have used the Split DNS set-up and your server is on a LAN IP (i.e. behind a NAT router) then you should have your DNS pointing to the LAN IP not your public IP (as shown in your output above). Is that what you have?
    Is a split dns conf. My DNS pointing is a private LAN IP (172.16.100.10)

  5. #5
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,566
    Rep Power
    57

    Default

    Quote Originally Posted by exalab View Post
    Is a split dns conf. My DNS pointing is a private LAN IP (172.16.100.10)
    Not according to the information you posted above, your DNS A record has this:

    Code:
    mail.cs.xxxxx.it. 1686 IN A 85.37.16.62
    That is, I believe, your public IP isn't it?

    You also used this command to check your config:

    Code:
    dig mail.cs.xxxxx.it
    You should actually have used this command to verify the records for your domain:

    Code:
    dig cs.xxxxx.it
    I'd suggest you go to the Split DNS article again and check your configuration by using the commands in the 'Verify...' section, post the output of all the commands here for confirmation if you like.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Daily mail report always reports "No messages found"
    By McPringle in forum Installation
    Replies: 42
    Last Post: 06-13-2011, 08:57 AM
  2. How to configure internal zimbra mta and external zimbra mta
    By danny.sierra@omtech.net in forum Installation
    Replies: 0
    Last Post: 10-20-2009, 06:50 AM
  3. zmclamdctl is not running after upgrade
    By Darren in forum Installation
    Replies: 24
    Last Post: 10-10-2008, 09:10 AM
  4. IMAP problem after added external account
    By Thanakorn in forum Administrators
    Replies: 5
    Last Post: 02-21-2008, 10:50 AM
  5. External MTA and TLS Question
    By 3RiversTechAdmin in forum Administrators
    Replies: 5
    Last Post: 12-20-2006, 10:36 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •