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Thread: zimbra out of LAN, doesn't work

  1. #1
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    Default zimbra out of LAN, doesn't work

    hi I already install zimbra on a ubuntu 6.06, this one is in a private ip 192.0.0.121 and I already configure in the DNS server (192.0.0.151) this ip (MX, A, PTR)...

    during the instalation I didn,t have problem with zimbra,
    the mail server doesn't have firewall
    I configure the principal firewall in this way
    * SMTP port 25/tcp incoming from any to 192.0.0.121 outgoing any to any

    * HTTP port 80/tcp incoming from any to any outgoing any to any

    * POP3 port 110/tcp incoming from any to 192.0.0.121 outgoing 192.0.0.121 to any

    * IMAP port 143/tcp incoming from any to 192.0.0.121 outgoing any to any

    * LDAP port 389/tcp incoming from any to 192.0.0.121 outgoing 192.0.0.121 to any

    * HTTPS port 443/tcp incoming from any to any outgoing any to any

    * SMTPS port 465/tcp incoming from any to any outgoing any to any

    * IMAPS port 993/tcp incoming from any to any outgoing any to any

    * POP3S port 995/tcp incoming from any to any outgoing any to any

    * Admin Interface port 7071/tcp


    I can send mail Zimbra to Zimbra (internal in the lan)
    I can send mail Zimbra to gmail

    but I can't recive mail from gmail, hotmail, yahoo, etc

    what else I need to config? thank

  2. #2
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    It sounds like the MX records for your domain aren't configured or set up properly - does the DNS server (visible on the internet) for your domain have the necessary MX and A records set up?

  3. #3
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    Behind a NAT router you need split DNS implemented. Search the wiki's for this.

  4. #4
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    Doesn,t matter if I already have a DNS Server?

  5. #5
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    If you are having problems receiving email sent from Yahoo, Gmail, Hotmail etc. and you have your NAT port forward set up correctly; this points to a DNS/MX problem.

    In a nutshell: when bob@gmail.com sends a message to joe@example.com, the Gmail server will look for the MX server record for example.com by looking in the DNS records for example.com. An example response to this would be mail.example.com. The Gmail server will then try and contact mail.example.com to deliver the message.

    If any of your DNS settings are incorrect or are not directed to your external IP address (your principal firewall?) then message delivery will fail.

    Does your internal DNS server handle requests from the Internet for your domain? If so, are the IP address(es) for your host records set to your internet-accessible IP address?

    You can check your domain's DNS configuration using the Dig tool - enter your domain in the Domain box and choose MX from the Query drop-down box. You should see atleast one entry beneath the ' ;; ANSWER SECTION' on the results page.
    Last edited by webman; 04-18-2008 at 12:57 PM.

  6. #6
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    the dig page show me this:

    ; <<>> DiG 9.3.2 <<>> @localhost correo.agb.com.ve MX
    ; (2 servers found)
    ;; global options: printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58456
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

    ;; QUESTION SECTION:
    ;correo.agb.com.ve. IN MX

    ;; AUTHORITY SECTION:
    agb.com.ve. 3600 IN SOA ccsctp10.genesisbci.net. hostmaster.genesisbci.net. 25 3600 600 86400 3600

    ;; Query time: 158 msec
    ;; SERVER: 127.0.0.1#53(127.0.0.1)
    ;; WHEN: Fri Apr 18 22:19:18 2008
    ;; MSG SIZE rcvd: 105



    THAT IS OK?

  7. #7
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    It seems that the domain doesn't have any MX records at all.

    This is the response from looking up the Zimbra MX records, and how properly-configured MX records should look like.

    Code:
     ;; QUESTION SECTION:
     ;zimbra.com.			IN	MX
     
     ;; ANSWER SECTION:
     zimbra.com.		1200	IN	MX	5 mta01.zimbra.com.
     zimbra.com.		1200	IN	MX	15 dogfood.zimbra.com.
    Whenever messages are sent to @zimbra.com, mta01.zimbra.com will receive them and deliver them accordingly.

    As your domain does not have any MX records (servers that will handle the email), anybody sending messages to people at your domain will not get delivered as essentially (as far as DNS is concerned) there is no mail handler set up.

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