[afnog] Securing a Zimbra Mail Server

[reenaabood]

Hello . R u fine 😊i have a question also in zimbra mail server installed a zimbra on centos 6.5 ..and i want to change the login screen from   zimbra to my own name and picture  (the logo) can u send for me a link or commands

-------- Original message --------
From: Alex Rhys-Hurn <alex at itworx.co.ke> 
Date: 21/04/2016  10:20  (GMT+03:00) 
To: Jordan Turyatunga <jkturyatunga at aol.com> 
Cc: afnog at afnog.org 
Subject: Re: [afnog] Securing a Zimbra Mail Server 

Hi,
A bit more on securing a zimbra server:

You should deploy a multi tiered approach as well with a Zimbra proxy server sitting in front of the main mailbox/mta server in its simplest form.

You can then ensure that you have DKIM and SPF set up properly.

Then in ZImbra web management, enable blocking of risky attachments (I block all the ones in the list)

Although I have good success with the spam control in ZImbra, its important to train users to use the spam/not spam button to teach zimbra what is and isnt spam.

I also use an Untangle Unified Threat Management Appliance infront of my zimbra to add extra phish, spam and virus cover to the mails and provide firewall and IPS.

Hope that helps.

Alex


From: "Jordan Turyatunga" <jkturyatunga at aol.com>
To: afnog at afnog.org, mathias at houngbo.net
Sent: Saturday, 16 April, 2016 16:12:54
Subject: Re: [afnog] Securing a Zimbra Mail Server
Thanks Mathias
Sent from AOL Mobile Mail 

Get the new AOL app: mail.mobile.aol.com


On Friday, March 11, 2016 Mathias HOUNGBO <mathias at houngbo.net> wrote:




    

    I think you should setup/configure

    

    update OS

    firewall

    dnssec

    spamfilter

    dkim

    strong user's password

    httpS only

    

    

    

    

    Le 10/03/2016 07:31, Jordan Turyatunga
      a écrit :

    
    Hey Team,
        

        
        I have installed a new Zimbra Mail Server, how would i make
          sure it is secured from hackers and spams. 
        

        
        Regards,
        Jordan
      
      

      
      

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