Install & configure Zimbra Open Source Mail Server on CentOS & RHEL

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15 Responses

  1. Prakash says:

    I am setting up a server for mailing.
    Zimbra on Cent OS 6.6

    Everything went well while installing.
    And all services running fine., I am able to login to webmail., and admin page.

    but I am unable to send or receive email.

    Even i tried using IP address in SMTP and POP.

    Will PTR record causing this. Because I just got it configured from our ISP.

    I got the mx record updated. When I check in it shows reverse DNS does not match SMTP banner.

    but when I am trying with IP address I should be able to send and receive mails.. right.?
    am I missing anything.? Please let me know how can I address this.
    I did check via Telnet for port 25

    I am able to get “220 ESMTP Postfix” for port 25
    and for 110 ” +OK Zimbra POP3 server ready”

    iptables is off.

    But still unable to send and receive emails.
    I configured Outlook using SSL Ports (995, 465). I am unable to telnet those ports.

    And, while installing zimbra, i disabled postfix. Is that required?
    I disabled postfix by by seeing a guide online.

  2. SACHIN says:

    In step 5 i got this error

    “zimbra-core-8.0.4_GA_5737.RHEL6_64-20130524120036.x86_64.rpm installation failed”

  3. Prem says:


    if we have configured 2 zimbra email servers, how can we configure the failover for web users.
    means, if one server is down, then user request should automatically switched to secondary server.

  4. Rahul Jain says:

    I want to configure zimbra with a static ip to access world wide access, how to setup dns and other settings.

  5. Vaibhav says:


    mkdir /opt/zimbra/perl5: Permission denied at /usr/share/perl5/vendor_perl/local/ line 269

  6. mukseh says:

    its good post for configured done successfully working.

  7. kalyan says:

    Hi friends

    I have one issue after configuring zimbra mail server in linux 6.4. The issue is I have installed it in my vmware, I am able access my mailserver from my vmware firefox browser through ip and also host name, but i could not able to access my mailserver from another system in my network. And vmware network is in bridge connect with static ip. all the ports were open for ssh dns http/https imap pop smtp. and i have tried all the ways from client machines. Could any one help me in figuring this out.

  8. Prince says:

    Hello, I have installed the server as per guide successfully but at the end. when i am trying to access the web on this link : its not working, everything went smooth at the time of installation without error, i don't know what to do in this situation. 😐 Please help me – you can also email me at

  9. pratap says:

    send me errer screen

  10. Rahul Yadav says:

    i have install and configured zimbra server and one domain created in server , i am able to send email to other domain but i am not able to receive emails from local and other domain ?
    pl. help me

  11. Md. Akram Hossain says:

    when I close and reopen each time, pop up certificate message, but I install it before, Is there any solution or should I buy certificate/need to install free certificate and Where I put this certificate file. Is this location is tls/certs or another ??

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