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Thread: [SOLVED] Can't receive or send emails outside but internally works fine help needed P

  1. #1
    suryakiran13 is offline New Member
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    Default [SOLVED] Can't receive or send emails outside but internally works fine help needed P

    Can't receive or send emails outside but internally works fine help needed please....

    I have installed zimbra on CentOS 5. It is working properly on our LAN but when I'm trying to send email to gmail account of from my gmail account to my zimbra account it is not sending emails or not even receiving emails. Don't know what to do please help me if..... i have split DNS setup and everything working fine but don't know the reason.....: (


    please help
    thank you
    Last edited by suryakiran13; 05-19-2010 at 04:29 AM.

  2. #2
    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by suryakiran13 View Post
    PLEASE HELP
    THANK YOU : )
    Do not post in Capitals, it's considered shouting and not acceptable on these forums.

    There are several threads (well, a lot really) in these forums that discuss the split DNS set-up and required information to check it's working OK - please search the forums and post the output from the commands.

    Have you disabled your firewall and SElinux on the Zimbra server? Have you actually looked in the log files to see what the error (if any) is that you're getting? Do you actually have external DNS records for your domain?
    Last edited by phoenix; 05-19-2010 at 05:15 AM.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    suryakiran13 is offline New Member
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    Sorry i wasn't aware about your terms....you can see now i have already converted those capitals into small......
    now here comes my particulars.......

    I've already searched most of threads related to my query in your forum but still I'm not satisfied with my problem I've successfully configured split DNS.

    my IP is: 192.168.7.114
    hostname is : tapal.bhavuni.edu

    I've already disabled the firewall and SELinux at the time of CentOS install.
    I've seen my zimbra.log file but not able to find any errors...I'm sending you my zimbra.log file with this.....and the output of other commands also......


    Detail: we are installing zimbra open source edition on single machine in our department LAN i want to tast here in department's LAN and then after we are planning to install it onto our Universities mail server. So now it is working fine on our physics department's LAN, working everything fine chat, emails but internally only...whenever i try to send email from my zimbra account to my gmail account it is not sending. error shows..unable to send me and it is returned.
    whenever i send email from my gmail account to my zimbra account it is also not sending.
    So want some help from master's of zimbra like you.....


    Information:
    ************************************************** ************************************************** **
    #cat /etc/hosts

    # Do not remove the following line, or various programs
    # that require network functionality will fail.
    127.0.0.1 localhost.localdomain localhost
    ::1 localhost6.localdomain6 localhost6
    192.168.7.114 tapal.bhavuni.edu tapal
    ************************************************** ************************************************** ***
    #cat /etc/resolv.conf

    ; generated by /sbin/dhclient-script
    search bhavuni.edu
    nameserver 192.168.7.114

    ************************************************** ************************************************** ***
    #dig tapal.bhavuni.edu mx


    ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> tapal.bhavuni.edu mx
    ;; global options: printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19059
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

    ;; QUESTION SECTION:
    ;tapal.bhavuni.edu. IN MX

    ;; ANSWER SECTION:
    tapal.bhavuni.edu. 2592000 IN MX 10 tapal.bhavuni.edu.

    ;; AUTHORITY SECTION:
    tapal.bhavuni.edu. 2592000 IN NS 192.168.7.114.tapal.bhavuni.edu.

    ;; ADDITIONAL SECTION:
    tapal.bhavuni.edu. 2592000 IN A 192.168.7.114

    ;; Query time: 26 msec
    ;; SERVER: 192.168.7.114#53(192.168.7.114)
    ;; WHEN: Wed May 19 17:19:35 2010
    ;; MSG SIZE rcvd: 95

    ************************************************** ************************************************** ****
    #dig tapal.bhavuni.edu any


    ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> tapal.bhavuni.edu any
    ;; global options: printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5445
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

    ;; QUESTION SECTION:
    ;tapal.bhavuni.edu. IN ANY

    ;; ANSWER SECTION:
    tapal.bhavuni.edu. 2592000 IN SOA tapal.bhavuni.edu. hostmaster.tapal.bhavuni.edu. 10118 43200 3600 3600000 2592000
    tapal.bhavuni.edu. 2592000 IN NS 192.168.7.114.tapal.bhavuni.edu.
    tapal.bhavuni.edu. 2592000 IN A 192.168.7.114
    tapal.bhavuni.edu. 2592000 IN MX 10 tapal.bhavuni.edu.

    ;; Query time: 1 msec
    ;; SERVER: 192.168.7.114#53(192.168.7.114)
    ;; WHEN: Wed May 19 17:21:26 2010
    ;; MSG SIZE rcvd: 142

    ************************************************** ************************************************** ****
    #host [tapal.bhavuni.edu]

    ;; connection timed out; no servers could be reached

    ************************************************** ************************************************** ****

    # nslookup tapal.bhauni.edu
    Server: 192.168.7.114
    Address: 192.168.7.114#53

    Non-authoritative answer:
    Name: tapal.bhauni.edu.bhavuni.edu
    Address: 67.15.238.6

    ************************************************** ************************************************** ****

    # /etc/hosts
    bash: /etc/hosts: Permission denied


    ************************************************** ************************************************** ****

    # /etc/bind/named.conf.options
    bash: /etc/bind/named.conf.options: No such file or directory


    ************************************************** ************************************************** ****

    # /etc/resolv.conf
    bash: /etc/resolv.conf: Permission denied



    ************************************************** ************************************************** ****

    # /etc/hostname
    bash: /etc/hostname: No such file or directory



    ************************************************** ************************************************** ****


    [zimbra@tapal ~]$ zmcontrol status
    Host tapal.bhavuni.edu
    antispam Running
    antivirus Running
    ldap Running
    logger Running
    mailbox Running
    mta Running
    snmp Running
    spell Running
    stats Running

    ************************************************** ************************************************** ****

  4. #4
    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by suryakiran13 View Post
    Sorry i wasn't aware about your terms....
    They're not our terms and the use of 'all capitals' is not recommended on any forum or mailing list.

    Quote Originally Posted by suryakiran13 View Post
    ..you can see now i have already converted those capitals into small......
    Thank you for changing it.

    Quote Originally Posted by suryakiran13 View Post
    I've successfully configured split DNS.
    You're quite right, it does seem to be OK.

    Quote Originally Posted by suryakiran13 View Post
    Detail: we are installing zimbra open source edition on single machine in our department LAN i want to tast here in department's LAN and then after we are planning to install it onto our Universities mail server. So now it is working fine on our physics department's LAN, working everything fine chat, emails but internally only...whenever i try to send email from my zimbra account to my gmail account it is not sending. error shows..unable to send me and it is returned.
    whenever i send email from my gmail account to my zimbra account it is also not sending.
    Is there any firewall in your organisation that might be blocking port 25 from sending the mail? Do you have any external DNS records for this mail server (if you do, do they work and what is the domain name)? If I do a dig for your domain name I get two mail server MX records that aren't (or don't appear to be) a Zimbra mail server - that would be why you aren't receiving any inbound email.

    What errors do you see in the log when you try to send an email? Is there any email in the deferred queue (you can look in the Admin UI)? Does your DNS server (on the Zimbra server) resolve external addresses i.e. is it a resolver or forward requests to another DNS server?
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  5. #5
    suryakiran13 is offline New Member
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    Thanx for replysing

    My mail server computer is not directly connected with internet, In our University we have computer center and from there we have internet line in our department so we are using proxy server to connect to the internet. i think that is the problem why i'm not able to send emals to to internet from zimbra mail server. our zimbra mail server does not have any direct internet connection.

    Thanx

    Suryakiran13

  6. #6
    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by suryakiran13 View Post
    My mail server computer is not directly connected with internet, In our University we have computer center and from there we have internet line in our department so we are using proxy server to connect to the internet. i think that is the problem why i'm not able to send emals to to internet from zimbra mail server. our zimbra mail server does not have any direct internet connection.
    Yes, that would severely hamper your attempts to send & receive email from the internet.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  7. #7
    suryakiran13 is offline New Member
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    Thanx man for your kind help


    take care

    Suryakiran13

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