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

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Email Server IP Address is Blacklisted

we have a Zimbra Mail server that was being used for 2 months now. the last week we faced a problem that the Public IP that was being used for our mail server started to be blacklisted and we couldn't ...
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2answers
297 views

BIND9 DNS forwarding with split horizion

I am trying to figure out what to do about my Zimbra server's DNS. According the Zimrba wiki they recommend that I install a copy of something like BIND on the server itself so Zimbra can handle the ...
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3answers
3k views

Zimbra and Postfix: configuring a catch-all mailbox/domain

I'm not new to Postfix, but am new to Zimbra. I've seen this answer on changing Postfix parameters, and this article on how to configure a catch-all domain in Postfix. What I need to find out is how ...
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1answer
229 views

some Zimbra project planning questions

I am planning to deploy a ZCS machine in a remote DC on colocation. Using the latest Community edition Hardware: 2x SAS disks for OS in raid1, 8x SAS disks in raid10 for Zimbra, 32Gb RAM 8 CPU ...
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2answers
2k views

run zimbra on low spec virtual machine

I am trying to install zimbra server on a low spec virtual machine running ubuntu 10.04. I do meet the requirements as documented here (1 GB RAM/5 GB free disk space). I got the virtual machine ...
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2answers
1k views

Broken Zimbra after securing SSH

I have a CentOS 5.7 server with Zimbra installed and all was working fine. I just secured SSH by: changing to another port denying root login enabling StrictModes changed AllowUsers to only 1 user ...
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2answers
658 views

Does each domain have to be tied to a unique IP address when using SSL certs?

I have a Zimbra ZCS 7.1.3 server it running the OSE version. The server hosts 4 domains for email. Each of the email domains has its own SSL cert that is self generated. Something that has sort of ...
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1answer
2k views

external postfix forwarding to zimbra server

I want to migrate from my current mail server (old_server) for my domain mydomain.com. old_server setup is Postfix+LDAP+Cyrus. Now I want to migrate my domain mail to Zimbra server (zimbra), but I ...
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2answers
179 views

Is it ok to install Zimbra on LAMP dedibox?

Is it ok to install zimbra on LAMP dedicated server which is running only our websites (no client sites) and also mails are only ours ? Do you see any disadvantage to install it on the same box where ...
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2answers
423 views

How can I make the most effective use of limited static IP addresses for a mail server?

I am running a Zimbra ZCS 7.1.2 server. The server is setup to host multiple domains, 3 at the moment. But I have a problem and I think I am over thinking the solution. The problem is I want every ...
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1answer
3k views

How configure Zimbra to bounce mails over a given size limit?

How to configure Zimbra to bounce/notify email to sender due to over attach size from external mails like Gmail, Yahoo, etc.. I am using Zimbra open source edition. Undelivered mails are not bouncing ...
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1answer
361 views

HTTP proxy with zimbra zcs

Does anyone know how I can enable HTTP / HTTPS proxy for domain in Zimbra. When I login to a secondary Zimbra domain it load the SSL cert for the primary domain. Is there a way to set the zimbra ...
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2answers
122 views

How do you separate emails for different roles an individual has?

I work at a university, where we have staff members who can also teach as an adjunct faculty member. We issue an account for the individual based on their name, so Joe Smith would get ...
0
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2answers
714 views

Backing up Zimbra ZCS

I am curious of what to do as far as backing up my Zimbra ZCS server I am testing for my company. I am running the open source edition so I am not able to do a hot backup of Zimbra, I would have to ...
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2answers
575 views

How do append a CA to an SSL certificate?

I am trying to setup an SSL cert for a domain on my Zimbra server. When I go to the place where it wants to me to paste the certs into the borwser windows it pops up a little warning message that ...
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1answer
2k views

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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2answers
3k views

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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3answers
5k 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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1answer
537 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 ...
3
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2answers
2k views

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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1answer
1k 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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1answer
8k 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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1answer
1k views

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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4answers
3k views

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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1answer
839 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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1answer
1k 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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2answers
237 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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4answers
1k 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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1answer
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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1answer
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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0answers
526 views

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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9answers
1k views

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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2answers
4k views

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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1answer
393 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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1answer
166 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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1answer
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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1answer
489 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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3answers
2k views

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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1answer
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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1answer
5k 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. ...
0
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1answer
75 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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1answer
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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1answer
1k views

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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1answer
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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1answer
336 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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1answer
3k views

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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1answer
2k views

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 ...
0
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2answers
303 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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2answers
66 views

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 ...
5
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1answer
2k views

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. ...