Zimbra Collaboration Suite (ZCS) is a groupware product created by Zimbra, Inc., located in Palo Alto, California, USA.

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Installing Zimbra ZCS

I was looking through some tutorials on how to install Zimbra ZCS on Ubuntu. Mainly I kept coming across this one. I had two question related to the installation, Zimbra only has an "Official ...
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Disable reverse PTR check in Zimbra and force accept from invalid domains

I've moved an older Sendmail/Dovecot system to a Zimbra community edition system. I need to be able to receive messages from certain standalone Linux hosts that may not have valid A records or proper ...
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4k views

Zimbra to zimbra complete migration (not just mail)

I'm facing a situation with some of my Zimbra servers. As time goes by I try to 'concentrate' all my Zimbra installs on my main ESXi server for safety reasons, since it is located in a Datacenter ...
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439 views

Zimbra Custom Favicon Lost After Update

after upgrading one of my customers' Zimbra Open Source Server all the custom Favicon went missing. I tried to copy the file "favicon.ico" in /opt/zimbra/jetty/webapps/zimbra/ but it doesn't work. Is ...
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spam from your own email?

I have recently been receiving spam that has been listed as my own email address. I remember doing a few telenet emails back in school and know there are some ways to send looking like they are coming ...
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998 views

postconf setting isn't “sticking”

I need to set the Postfix lmtp_host_lookup setting to native instead of dns, which is the default. This is an artifact of the way I have Zimbra 7 installed on my Ubuntu 11.04 system, and local mail ...
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6k views

Zimbra: changing postfix parameters

I would like to change mynetworks Postfix configuration parameter in Zimbra 7 on Debian GNU/Linux 5.0. I tried the following (as zimbra user): $ zmlocalconfig -e postfix_mynetworks="127.0.0.0/8 ...
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export user maildir from zimbra

I need to export all one specific account e-mails in "raw" format from Zimbra server. POP3 is not an option because it is needed for legal department usage and they insist that they want users ...
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Problem migrating from Dovecot to Zimbra

Dovecot provides a master login (a master user name and password that can log into all user accounts). I've setup Dovecot as per: http://wiki1.dovecot.org/Authentication/MasterUsers Here's my ...
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740 views

Problem moving zimbra to a new disk

I've a Zimbra Release 6.0.8_GA_2661.DEBIAN5 DEBIAN5 FOSS edition installed on a Debian 5.0. My main disk was running low on space, so I've mounted an additional disk, shutted down zimbra, rsync-ed ...
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938 views

How can Monitor Linux zimbra mail traffic ( in and cout )?

I configured zimbra mail server in linux. Is there any way to monitor e-mail traffic through linux server. Or any way to monitor spam activities on this zimbra mail server. Thanks for the great help. ...
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236 views

New email system

I am in charge of planning a new email system for my company of about 150 users and we are looking for email solutions. We are looking to host the email in-house, and we are kind of looking towards ...
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996 views

Best Linux Email solution for small business migrating from Exchange

We currently have approximately 50 users in an Exchange 2003 environment. We have about 25 users who get email via iPhone or other smart-phone. Currently, we are pushing the Exchange database cap (70 ...
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3k views

Multi-IP address zimbra server DNS PTR records and spam

We have a mail server running Zimbra (ZCS 6.0.8). The server has 5 active public IP addresses in the same subnet. (.226-.230). I currently have A records for each of these ...
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5k views

How do you recover from a zimbra crash?

My server running zimbra crashed hard and now the zimbra server won't start. Here is what I get in the logs: Nov 24 21:04:14 zimbra1 slapd[21258]: @(#) $OpenLDAP: slapd 2.4.21 (Mar 24 2010 18:25:37) ...
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New installation Zimbra mails end up in Spam folder of Gmail and Yahoo

I have setup a new Zimbra Open Source installation. This is a new email server and the IP of this server is not Black listed in most prominent Block Lists. But what ever I have tried the emails still ...
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Why should a small business company have its in-house mail server?

I really don't get (because of my ignorance, of course) the advantage of having another service to update, check, mantain, backup and so on... When you have outstanding services like gmail where you ...
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Zimbra, how to turn off spamassasin and clamAV

We are using Zimbra 5.0.18 and I like to know how permanetly disable spamassasin and clamav. We have ironport so no wories about spam and malware.
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352 views

All messages being tagged NO_DNS_FOR_FROM on Zimbra server

On our Zimbra 6.0.5 server running on Fedora 6, it seems that all messages are being tagged by spamassassin with NO_DNS_FOR_FROM (despite having legitimate sent addresses). How should I debug this? ...
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137 views

Can I link directly to an email in a user's zimbra webmail client?

I'm using Zimbra's handy RESTful xml API (http://wiki.zimbra.com/wiki/ZCS_6.0:Zimbra_REST_API_Reference:Get_Folder) to pull down important emails from a user's email account. I'd like to make them ...
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2k views

how to remove auto_bcc in Postfix (Zimbra)

Hi I added a auto_bcc in my postfix config, and now I don't know how to remove it. This is what I did: Per user bcc for Zimbra in /opt/zimbra/postfix/conf, create a file called sender_bcc and added ...
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425 views

Welcome message after creating a mailbox user in zimbra

We have deployed a zimbra mail server of version 5.0.x. I'm trying to setting up a automatic sending welcome message when email box is created. Is there any feature or that can be done. Can anyone ...
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Backing up the open-source edition of Zimbra mail

Background: We run the open-source edition of Zimbra mail (5, not 6 yet) and while it's not something that we want to encourage (prevention is better than a cure), we currently have no way of backing ...
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5k views

How do I make changes to spamassassin under zimbra?

We are running a zimbra installation which uses spamassassin to filter mail. I have not installed this myself so I am not completely sure if this is a plain vanilla installation. The zimbra ...
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4k views

LDAP + Zimbra authentication

I'm trying to configure external LDAP authentication from my LDAP box through Zimbra. Both servers are running on CentOS. The Zimbra wiki has documentation but it's still leaving me puzzled. ...
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68 views

Advice for migrating email server

I'm planning to migrate a Zimbra server with about 200 GB of data from a server hosted in an office into a datacentre, to increase uptime (we've had a couple of outages when our network here started ...
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1k views

Upgrade Zimbra Server from 5.0.23 to 6.0.6.1

What are the most important points when upgrading a Zimbra server? Is there an upgrade guide? Zimbra is running on a CentOS5 server. For now I think about the following steps: Backup Zimbra Stop all ...
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why my mails from zimbra server to yahoo goes in to spam folder

I just configured zimbra mail server but mail from my zimbra to yahoo, hotmail etc going into there spam folder any suggestion??? bellow is header part from yahoo of that mail X-DSPAM-Result: ...
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3k views

Why is my Zimbra mail going into the spam folder of yahoo, hotmail etc.?

All mail from my new Zimbra mail server is going into spam and junk folder of Yahoo or Hotmail. Any suggestion to deliver them direct into inbox? Below is the header part of my mail from yahoo... ...
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325 views

Does Folder wise mail fetching possible into zimbra (postfix) from old server

I had succefully fetch all my old mail server mail in to new zimbra mail server (postfix) using fetchmail...but all mails goes into inbox insted of specific folder.... So does folder wise mail ...
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Can I receive mail at another port like 465 instead of default 25 on my mail server?

My Zimbra mail server, which uses Postfix, is working fine. I am able to receive mail at 25 from Yahoo, Hotmail etc., but if I block my 25 port for incoming then mail will stop to come into my mail ...
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Zimbra pop3 not accepting connections

We have a new Zimbra server (Release 5.0.18_GA_3011.UBUNTU8 UBUNTU8 FOSS edition) running and it was working great until we changed the host name following documented procedures. Now the server is ...
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290 views

how to move zimbra mail to OS X server mail

I have just purchased a mac server 10.6 and would like to migrate my zimbra imap folders for all my users to the mac. Is there an easy way to do this or do I have to go through the copy paste using ...
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Weird mail problem

There is a weird problem that I cannot think of any solution. There is a mail server Xs that has couple of domains on it and it is in Datacenter Xd. And there is a mail server Ys that has couple od ...
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Zimbra - NFS vs. iSCSI

We are going to be migrating our mail server from postfix/courier to Zimbra over the next few months. We've run a prototype server over an iSCSI LUN exported from a Dell Equallogic quite successfully. ...
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New Zimbra accounts cannot login

I'm using Zimbra Collaboration Suite 5.0.11 and it's been working pretty well until yesterday. I've added a new mail account using the administration console with no errors. But when I try to login ...
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966 views

What is the best process to automate Zimbra deploy using cobbler+puppet?

I set up a fully working cobbler server on a RHEL5 machine. This is able to deploy a new server on bare metal machine, partitioning the disks, using LVM and creating as much virtual machines as I ...
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273 views

Zimbra installation not working

Symptoms : our mail server, a dedicated Fedora server with zimbra, stopped working, in such a way we couldn't even log in with SSH. Soft reboots, through our web admin console, did make it work again, ...