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Zimbra Collaboration 8.6 Patch 9 now available (includes fix for CVE-2017-8802). Read the announcement.
Zimbra Collaboration 8.8.7 + Zimbra Connector for Outlook 8.8.7 are available.. Read the announcement.
Are you a Zimbra Developer? You can find some interesting stuff in our Official GitHub: https://github.com/Zimbra and check the Community Projects too: https://github.com/Zimbra-Community/

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Announcements

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Zimbra Collaboration 8.8 is Now Available

Last post by jorgedlcruz « Fri Dec 15, 2017 3:01 pm
Posted in Announcements
Replies: 11
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by jorgedlcruz » Wed Dec 13, 2017 4:50 pm » in Announcements

We are proud to announce the release of Zimbra 8.8. Zimbra Collaboration 8.8 is an exciting release. Some features are only available in the Network...
11 Replies

175721 Views

Last post by jorgedlcruz View the latest post
Fri Dec 15, 2017 3:01 pm
Rspamd: A replacement for Spamassassin & Postscreen

Last post by tonyg « Thu Oct 17, 2019 5:13 am
Replies: 185
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by phoenix » Sat Jul 29, 2017 3:19 pm

I've been looking for a suitable replacement for DSPAM, a project that was good but died and became unmaintained then totally removed from Zimbra. In...
185 Replies

562473 Views

Last post by tonyg View the latest post
Thu Oct 17, 2019 5:13 am

Topics

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How to monitor Zimbra using pflogsumm and NET-SNMP-EXTEND

Last post by tonyg « Thu Nov 07, 2019 9:13 pm
Replies: 7
Attachment(s) by jorgedlcruz » Mon Aug 14, 2017 12:20 pm

Hello everyone,
I've been working on a spare project using SNMP and Zimbra Collaboration. This project uses a modified version of the popular...

7 Replies

15815 Views

Last post by tonyg View the latest post
Thu Nov 07, 2019 9:13 pm
A Grafana Dashboard for Zimbra Collaboration

Last post by jorgedlcruz « Mon Sep 23, 2019 11:24 am
Replies: 76
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Attachment(s) by jorgedlcruz » Tue Aug 08, 2017 12:50 am

Hello everyone,
I've been working on a spare project using Grafana and Zimbra Collaboration. This dashboard, based on the well-known pflogsumm,...
76 Replies

67906 Views

Last post by jorgedlcruz View the latest post
Mon Sep 23, 2019 11:24 am
certbot-zimbra v0.2

Last post by onzyg « Mon Sep 09, 2019 7:54 pm
Replies: 5
by maxxer » Sun Sep 10, 2017 8:30 am

Hi
An update for the users of this script: I've partially rewritten it so that now it patches nginx's template file instead of production ones....

5 Replies

13120 Views

Last post by onzyg View the latest post
Mon Sep 09, 2019 7:54 pm
CVE-2019-9670 being actively exploited

Last post by maxxer « Tue Aug 06, 2019 8:55 am
Replies: 239
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Attachment(s) by maxxer » Wed Apr 03, 2019 2:32 pm

As many repoted on IRC, the latest security bug found in Zimbra is being actively exploited in the wild.

It's easy to find a compromised install...
239 Replies

149027 Views

Last post by maxxer View the latest post
Tue Aug 06, 2019 8:55 am
STARTTLS everywhere

Last post by FredKarno « Thu Jul 11, 2019 12:39 pm
Replies: 7
by phoenix » Sat Jun 30, 2018 9:38 am

Following on from their success with Let's Encrypt (and certbot) the Electronic Frontier Foundation have launched an initiative to get all mail...

7 Replies

9847 Views

Last post by FredKarno View the latest post
Thu Jul 11, 2019 12:39 pm
Another Letsencrypt method

Last post by JDunphy « Sat Jul 06, 2019 5:57 pm
Replies: 111
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by JDunphy » Fri Nov 04, 2016 6:52 pm

Thought I would share a method that I prefer over installing and allowing the letsencrypt software to take over my zimbra host. For those users that...
111 Replies

109624 Views

Last post by JDunphy View the latest post
Sat Jul 06, 2019 5:57 pm
memcached amplification attack

Last post by davidkillingsworth « Thu May 30, 2019 12:12 pm
Replies: 16
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by reason2008 » Thu Mar 01, 2018 12:06 am

Is this anything we need to be concerned about? My server is behind a firewall and doesn't allow the port addressed in the article.
16 Replies

18190 Views

Last post by davidkillingsworth View the latest post
Thu May 30, 2019 12:12 pm
How to configure zimbra server as MX gateway ?

Last post by maslakyavuz1 « Mon Nov 18, 2019 10:56 am

by maslakyavuz1 » Mon Nov 18, 2019 10:56 am

Hello

I have several domains in an another mailbox server. I use zimbra-opensource-8.6 as MX gateway for these domains.
after upgrading to 8.7, I...

0 Replies

85 Views

Last post by maslakyavuz1 View the latest post
Mon Nov 18, 2019 10:56 am
Duplicate message with large attachment from Outlook

Last post by zimico « Mon Nov 18, 2019 10:46 am

by zimico » Mon Nov 18, 2019 10:46 am

Dear all,
Today I received so many duplicate emails which sent from my coworker (email abc@example.com . Those emails have 18Mb of attachment....

0 Replies

51 Views

Last post by zimico View the latest post
Mon Nov 18, 2019 10:46 am
Changing DNS After Installation

Last post by ibrahimayhan « Mon Nov 18, 2019 4:35 am

by ibrahimayhan » Mon Nov 18, 2019 4:35 am

I am using Zimbra OSE,
When I first set up, I used Local DNS Addresses on our Structure as DNS,
Only Local DNS Addresses Will Be Canceled
How Do I...

0 Replies

72 Views

Last post by ibrahimayhan View the latest post
Mon Nov 18, 2019 4:35 am
Automatically restart the service

Last post by dimon « Mon Nov 18, 2019 3:23 am
Replies: 2
by dimon » Fri Nov 15, 2019 9:39 am

hi, tell me, is it possible to configure the zmailboxdctl service so that when it falls, it restarts itself? The service crashes once a day.

Best...

2 Replies

468 Views

Last post by dimon View the latest post
Mon Nov 18, 2019 3:23 am
Fail2Ban on Zimbra 8.8 with Centos 7

Last post by esafonov « Sun Nov 17, 2019 3:46 pm
Replies: 1
by Peter Parker » Thu Jun 21, 2018 8:52 am

Hi guys,

I’m having a multi-server Zimbra environment as follow: 1 LDAP + 2 MTA + 2 MAILBOX + 1 PROXY.

I’m setting Fail2Ban on Zimbra 8.8 with...

1 Replies

3863 Views

Last post by esafonov View the latest post
Sun Nov 17, 2019 3:46 pm
[Help] Mail deduplication on Zimbra

Last post by esafonov « Sun Nov 17, 2019 2:45 pm
Replies: 1
by mylove1289 » Thu Jun 02, 2016 4:43 pm

I have installed Zimbra Open Source 8.6.0 and configure send/receive mail successful.
I want to understand about mail deduplication on zimbra.

I...

1 Replies

1628 Views

Last post by esafonov View the latest post
Sun Nov 17, 2019 2:45 pm
Restrict sending email to particular mail id's using zimbra

Last post by sanoj « Sun Nov 17, 2019 7:59 am
Replies: 1
by sanoj » Thu Nov 14, 2019 8:07 am

Hi All,

I need to restrict users to send official e-mails to user's personal id's in zimbra?

Do we have any option in zimbra to block sending...

1 Replies

238 Views

Last post by sanoj View the latest post
Sun Nov 17, 2019 7:59 am
Zimbra 8.7 + tlsv1.2

Last post by phoenix « Sat Nov 16, 2019 9:07 am
Replies: 1
by pattonb » Sat Nov 16, 2019 8:58 am

Does Zimbra 8.7 support TLSv1.2 ?

1 Replies

333 Views

Last post by phoenix View the latest post
Sat Nov 16, 2019 9:07 am
Find a sent mail from cellphone and move a copy to a folder

Last post by silbro « Fri Nov 15, 2019 9:36 pm
Replies: 3
by silbro » Sun Nov 10, 2019 4:43 pm

Hi all

I have an issue where one of my clients sent a mail with his tablet. The sent mail got deleted after 5 days on his tablet. Because the tablet...

3 Replies

656 Views

Last post by silbro View the latest post
Fri Nov 15, 2019 9:36 pm
How to allow a PHP site to connect to zimbra smtp

Last post by L. Mark Stone « Fri Nov 15, 2019 7:03 pm
Replies: 1
by emin orhun » Fri Nov 15, 2019 2:49 pm

Hi, I want to send mail using zimbra in the background for the application we have written with php. I can send it with Zimbra at domain without...

1 Replies

449 Views

Last post by L. Mark Stone View the latest post
Fri Nov 15, 2019 7:03 pm
Cbpolicyd database corrupted postfix 450 4.7.1

Last post by L. Mark Stone « Fri Nov 15, 2019 1:43 pm
Replies: 2
by aurzola » Tue Sep 18, 2018 3:04 pm

I'm using zimbra OS 8.7.11 / Ubuntu 16.04:

Somehow the cbolicyd database got corrupted the log shows:
ERROR: Failed to record session tracking...

2 Replies

953 Views

Last post by L. Mark Stone View the latest post
Fri Nov 15, 2019 1:43 pm
Retrieving messages for the following external account has failed

Last post by andrey.ivanov « Fri Nov 15, 2019 10:15 am
Replies: 9
by dragoslav » Tue Oct 22, 2019 2:33 pm

Since the last update I have this error message:

******** (failing since 22/10/19 14:54)
Error: system failure: Folder sync failed, system failure:...

9 Replies

1404 Views

Last post by andrey.ivanov View the latest post
Fri Nov 15, 2019 10:15 am
incoming emails not seen in inbox after installing 8.8.8 patch 6

Last post by bunny « Fri Nov 15, 2019 8:04 am
Replies: 4
by Erik-NA » Sat Jun 23, 2018 11:19 am

Just installed patch 6 for the 8.8.8 GA release. For some reason incoming emails are delivered to the users mailbox but is not shown in the users...

4 Replies

1168 Views

Last post by bunny View the latest post
Fri Nov 15, 2019 8:04 am
Zimbra MTA outbound and inbound?

Last post by killmasta93 « Fri Nov 15, 2019 12:16 am
Replies: 5
by killmasta93 » Mon Nov 11, 2019 6:07 pm

Hi,
Recently moving from pure postfix email server to zimbra, really want to have the web part of emails and calendars. Before I had postfix on...

5 Replies

761 Views

Last post by killmasta93 View the latest post
Fri Nov 15, 2019 12:16 am
Zimbra not releasing space

Last post by mja « Thu Nov 14, 2019 5:14 pm
Replies: 7
by nikesh » Tue Oct 20, 2015 3:01 am

We are using Zimbra 8.0 collaboration server open source edition. (Release 8.0.0_GA_5434.RHEL6_64_20120907144639 CentOS6_64 FOSS edition ) on...

7 Replies

1245 Views

Last post by mja View the latest post
Thu Nov 14, 2019 5:14 pm
Double compressed blobs

Last post by mja « Thu Nov 14, 2019 4:46 pm
Replies: 1
by Kalpazan » Mon Oct 28, 2019 11:47 am

Hello admins,

I used to have multi-server setup with front-end running mta, amavis, ldap, etc. and back-end running mailbox server only. All this on...

1 Replies

261 Views

Last post by mja View the latest post
Thu Nov 14, 2019 4:46 pm
Continuous alerts /dev/loop* at 100%

Last post by kilton_jmiles « Thu Nov 14, 2019 4:13 pm
Replies: 4
by realzenu » Sun Mar 31, 2019 9:19 pm

Hello Zimbra guru’s,
I need some guidance to suppress continued alerting as listed below:
Mar 31 21:10:00 mail zimbramon : 14587:crit: Disk warning:...

4 Replies

2910 Views

Last post by kilton_jmiles View the latest post
Thu Nov 14, 2019 4:13 pm
Orphaned blobs after account deletion

Last post by mja « Thu Nov 14, 2019 4:11 pm

by mja » Thu Nov 14, 2019 4:11 pm

Hello everyone,

I have deleted a huge account ( mailbox_id 188 ) with a million mails, it went ok, but I didnt have see the disk space being freed....

0 Replies

106 Views

Last post by mja View the latest post
Thu Nov 14, 2019 4:11 pm

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