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Thread: Sent mails from one user are not getting received by other user

  1. #1
    jiggy is offline Active Member
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    Default Sent mails from one user are not getting received by other user

    Hello,

    I have installed zimbra on fedora core 5 on my local machine.

    I created two users using the admin login namely abc@.. and efg@....

    Now when i am sending a mail from abc@... to efg@... ,the efg@... user is not receivingthe mail and vice-versa.

    Can anybody please let me know why this is happening.

    In the logs i found:
    status=bounced (Host or domain name not found. Name service error for name=mybox.mydomain type=A: Host not found)

    All the services are successfully running as per executing zmcontrol status command.

    Thanks.
    Last edited by jiggy; 02-09-2007 at 06:01 AM. Reason: Got something from logs

  2. #2
    Nutz is offline Special Member
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    This is more likely than not a DNS issue.

    What it sounds like is that your mailserver is trying to do a DNS lookup for delivery and not finding an A record for your server.

    What is the output of "nslookup myserver.mydomain"? (run this from the command line on your mailserver)

  3. #3
    jiggy is offline Active Member
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    My domain name is mybox.mydomain:

    The command : nslookup myserver.mydomain
    show the following

    Server: 202.87.39.70
    Address: 202.87.39.70#53

    ** server can't find mybox.mydomain: NXDOMAIN

    What to do??

    Thanks

  4. #4
    Nutz is offline Special Member
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    Ok, so here's your problem.

    Your server has no record in DNS. With no record in DNS the mail server has no idea where it should send mail to when you send to that domain.

    From the looks of this you are using external DNS (I assume that this is provided by your ISP).

    You probably need to install a DNS server (bind is pretty standard, but there are others) and configure it and add an entry for your server.

    If, by chance you have the ability to edit DNS on this server, you need to add an A record, and an MX record as well. I can walk you through that if you need.

  5. #5
    jiggy is offline Active Member
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    Thanks a lot Nutz will look into this and if neededyour help will let you know.

    Thanks

  6. #6
    Nutz is offline Special Member
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    Good luck!

  7. #7
    jiggy is offline Active Member
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    Hi Nutz.

    Need to know something.
    See i uninstalled the Zimbra server and installed it once again but this time with domain name localhost.localdomain.

    After this when i executed the command : nslookup localhost.localdomain
    i got the following result:

    Server: my primaryDNS address
    Address: my primaryDNS address#53

    Name: localhost.localdomain
    Address: 127.0.0.1


    Can you please let me know why this time it didnt looked for an MX record in the DNS and thrown an error ??

    Thanks..
    Last edited by jiggy; 02-11-2007 at 11:00 PM.

  8. #8
    MidSpeck is offline Active Member
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    Post nslookup syntax

    Quote Originally Posted by jiggy View Post
    Can you please let me know why this time it didnt looked for an MX record in the DNS and thrown an error ??
    To use nslookup to look at a domain's MX record, use the following syntax:
    Code:
    nslookup -type=MX somedomain.com
    You can also use the dig command if you really want to look into the guts of things:
    Code:
    dig MX somedomain.com
    Both will show you the mail exchanger (MX) record for "somedomain.com" along with their priorities (lower number = main mail server).

  9. #9
    Nutz is offline Special Member
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    Quote Originally Posted by jiggy View Post

    Can you please let me know why this time it didnt looked for an MX record in the DNS and thrown an error ??

    Thanks..
    It sounds like you are asking "Why does it not throw an error?" Is that correct?

    If so, the reason that it does not throw an error is because localhost.localdomain not only has an entry in /etc/hosts but it will never be different than 127.0.0.1

    Keep in mind, with this config nobody outside of your system will be able to send you mail (or replies, etc.).

    Hope this helps...

  10. #10
    jiggy is offline Active Member
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    Default Thanks a lot for such clear reply

    Thanks a lot

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