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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

50303 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 phoenix « Tue Nov 13, 2018 4:46 pm
Replies: 179
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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...
179 Replies

178839 Views

Last post by phoenix View the latest post
Tue Nov 13, 2018 4:46 pm

Topics

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STARTTLS everywhere

Last post by qmoataz « Tue Nov 13, 2018 9:39 am
Replies: 4
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...

4 Replies

2263 Views

Last post by qmoataz View the latest post
Tue Nov 13, 2018 9:39 am
A Grafana Dashboard for Zimbra Collaboration

Last post by qmoataz « Tue Nov 13, 2018 9:22 am
Replies: 65
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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,...
65 Replies

29615 Views

Last post by qmoataz View the latest post
Tue Nov 13, 2018 9:22 am
Another Letsencrypt method

Last post by JDunphy « Sun Nov 04, 2018 1:55 pm
Replies: 90
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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...
90 Replies

48839 Views

Last post by JDunphy View the latest post
Sun Nov 04, 2018 1:55 pm
How to monitor Zimbra using pflogsumm and NET-SNMP-EXTEND

Last post by jepy « Thu Oct 11, 2018 7:17 am
Replies: 4
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...

4 Replies

5770 Views

Last post by jepy View the latest post
Thu Oct 11, 2018 7:17 am
memcached amplification attack

Last post by PiJToo « Wed Jul 25, 2018 4:00 pm
Replies: 14
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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.
14 Replies

7548 Views

Last post by PiJToo View the latest post
Wed Jul 25, 2018 4:00 pm
certbot-zimbra v0.2

Last post by jorgedlcruz « Sun Sep 10, 2017 10:14 am
Replies: 1
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....

1 Replies

5766 Views

Last post by jorgedlcruz View the latest post
Sun Sep 10, 2017 10:14 am
WebUI not refreshing properly

Last post by pup_seba « Tue Nov 13, 2018 4:04 pm

by pup_seba » Tue Nov 13, 2018 4:04 pm

Hi,

From time to time using the WebUI, the users need to force an update of the client, either via browsing in different folders, pressing f5 or...

0 Replies

31 Views

Last post by pup_seba View the latest post
Tue Nov 13, 2018 4:04 pm
Zimbra Network Service error

Last post by DualBoot « Tue Nov 13, 2018 3:49 pm
Replies: 1
Attachment(s) by qmoataz » Mon Nov 12, 2018 7:21 am

Hello,,
I have problem when i create or reply to emails when im outside my netwrok from my pc using any browsers. At the same time no problem when i...

1 Replies

110 Views

Last post by DualBoot View the latest post
Tue Nov 13, 2018 3:49 pm
[ZCS FOSS 8.8.10] Deleteting several accounts in parallel

Last post by 7224jobe « Tue Nov 13, 2018 10:26 am
Replies: 4
by wodel » Mon Nov 12, 2018 1:35 pm

Hi,

Can I delete accounts in parallel, for example starting N jobs with parallel to execute a zmprov da?

Is there any risks in doing that, and will...

4 Replies

253 Views

Last post by 7224jobe View the latest post
Tue Nov 13, 2018 10:26 am
[ZCS FOSS 8.8.10] Message Size limit on Multi-install server

Last post by pup_seba « Tue Nov 13, 2018 10:13 am
Replies: 3
by wodel » Mon Nov 12, 2018 1:45 pm

Hi,

I have a multi-installation server of ZCS, we are in phase of migrating from the old mail server to the new ZCS platform.

When testing...

3 Replies

273 Views

Last post by pup_seba View the latest post
Tue Nov 13, 2018 10:13 am
DMARC incoming mail

Last post by qmoataz « Tue Nov 13, 2018 9:43 am
Replies: 1
by ALP » Tue Nov 13, 2018 12:29 am

Dear, there is some way to block incoming emails that do not pass the DMARC, DKIM and SFP filter.

Thank you

1 Replies

88 Views

Last post by qmoataz View the latest post
Tue Nov 13, 2018 9:43 am
Need to expose IP address of hacker

Last post by pup_seba « Tue Nov 13, 2018 9:29 am
Replies: 3
by Mauldraine » Sun Nov 11, 2018 1:20 am

Good evening everyone,

I am in dire need of the collective brain power of these forums. I have someone attempting to log in to my account via the...

3 Replies

226 Views

Last post by pup_seba View the latest post
Tue Nov 13, 2018 9:29 am
Simple program to report successful/fail ip logins and sorted by count

Last post by Labsy « Tue Nov 13, 2018 9:19 am
Replies: 19
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by JDunphy » Sat Jan 28, 2017 12:17 am

In case anyone wants to track ip's with user login and the counts by ip. I use it to look for compromised accounts or ones that will be soon. ;-)...
19 Replies

2373 Views

Last post by Labsy View the latest post
Tue Nov 13, 2018 9:19 am
How to delete old mails by date

Last post by vuducanha2 « Tue Nov 13, 2018 8:11 am
Replies: 5
by vuducanha2 » Wed Nov 07, 2018 10:06 am

Hi everybody !
We are using Zimbra 8.0.9 ,
We look forward to having a feature that can help remove or move old emails to the trash !
Ex : Move to...

5 Replies

263 Views

Last post by vuducanha2 View the latest post
Tue Nov 13, 2018 8:11 am
Server is hacked??

Last post by DualBoot « Tue Nov 13, 2018 8:03 am
Replies: 4
by edtricklam » Mon Nov 05, 2018 2:41 pm

One of user account is hacked and spam out last week. We already changed his password and clean up all spam mail. We monitor 3 days.
But today we...

4 Replies

290 Views

Last post by DualBoot View the latest post
Tue Nov 13, 2018 8:03 am
Spam problem

Last post by JDunphy « Mon Nov 12, 2018 7:35 pm
Replies: 4
by vijendra » Wed Nov 07, 2018 1:43 pm

Hi All,
I am running on zimbra 8.6 and now many of our user facing spam email from their own id and subject is "Change your password...

4 Replies

370 Views

Last post by JDunphy View the latest post
Mon Nov 12, 2018 7:35 pm
Zimbra web interface timeout error.

Last post by macglynn « Mon Nov 12, 2018 8:57 am
Replies: 2
by macglynn » Wed Oct 24, 2018 8:25 am

Hi, I’m using Zimbra 8.6.0 per cent 6. If I stop the service and start it again, some time after the Zimbra service is already started (about 2-3...

2 Replies

436 Views

Last post by macglynn View the latest post
Mon Nov 12, 2018 8:57 am
Shared folder via Outlook Mac?

Last post by MisterM75 « Mon Nov 12, 2018 7:45 am
Replies: 1
by MisterM75 » Mon Nov 05, 2018 11:12 am

Hello
Is there an additional setting, when I'm doing a folder share via another user with my Outlook on Mac, for it to be displayed?
Well to you
Mz

1 Replies

134 Views

Last post by MisterM75 View the latest post
Mon Nov 12, 2018 7:45 am
Sizing of innodb_buffer_pool_size

Last post by pup_seba « Sun Nov 11, 2018 7:08 pm
Replies: 2
by pup_seba » Sun Nov 11, 2018 10:17 am

Hi,

I usually configure innodb_buffer_pool_size as the result of what `du -sh /opt/zimbra/db/data`.
For example:
du -sh /opt/zimbra/db/data
9.6 GB...

2 Replies

224 Views

Last post by pup_seba View the latest post
Sun Nov 11, 2018 7:08 pm
How to white list domains when reject_unknown_helo_hostname or reject_invalid_helo_hostname is enabled

Last post by teds-it « Sat Nov 10, 2018 12:03 pm
Replies: 7
by davidkillingsworth » Mon May 23, 2016 11:53 am

I would like to suggest an edit to this WIKI page.

The use case is: You have reject_unknown_helo_hostname or reject_invalid_helo_hostname or...

7 Replies

3330 Views

Last post by teds-it View the latest post
Sat Nov 10, 2018 12:03 pm
From email id is showing smtp@mycompany.com

Last post by abhijit.patil24 « Sat Nov 10, 2018 7:10 am

by abhijit.patil24 » Sat Nov 10, 2018 7:10 am

Hello All,
My company domain: mycompany.com
Zimbra 7.0
centOS 6.5

If someone1@mycomapany.com send test email to somaone2@gmail.com and checked that...

0 Replies

190 Views

Last post by abhijit.patil24 View the latest post
Sat Nov 10, 2018 7:10 am
Sending to external problem

Last post by acidjazs « Sat Nov 10, 2018 4:36 am

by acidjazs » Sat Nov 10, 2018 4:36 am

Hi, I am quite new to zimbra.
my company installed zimbra on sub-domain while the domain used for O365. The DNS hosted on Cloudflare. All DNS running...

0 Replies

137 Views

Last post by acidjazs View the latest post
Sat Nov 10, 2018 4:36 am
New warnings after upgrade: CompoundCachingTier - Error overflowing into lower caching tier - The element is too large

Last post by pup_seba « Fri Nov 09, 2018 7:54 pm
Replies: 12
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Attachment(s) by msquadrat » Mon Oct 16, 2017 12:20 pm

This weekend I upgraded our installation from 8.6 to 8.711 and as always kept an eye on the mailbox.log to see if anything bad happens. Looks good so...
12 Replies

2768 Views

Last post by pup_seba View the latest post
Fri Nov 09, 2018 7:54 pm
Draft message lost. Track actions on messages. Where's this email message?

Last post by akcurate-pbl « Fri Nov 09, 2018 10:58 am

by akcurate-pbl » Fri Nov 09, 2018 10:58 am

Hello!

We are evaluating Zimbra Community Edition (version 8.8.9_GA_3026.FOSS) on a single server installation. A user was keeping an email message...

0 Replies

132 Views

Last post by akcurate-pbl View the latest post
Fri Nov 09, 2018 10:58 am
antispam and antivirus issues

Last post by afsher « Fri Nov 09, 2018 10:52 am
Replies: 7
by vignesh » Mon Aug 20, 2018 6:38 pm

Hi,
I have zimbra 8.6 installed on my ubuntu server.
i am able to run all services on server except antispam and antivirus.
When i enable them and...

7 Replies

294 Views

Last post by afsher View the latest post
Fri Nov 09, 2018 10:52 am

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