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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

205926 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 MisterM_74 « Sun Dec 29, 2019 4:56 pm
Replies: 188
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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...
188 Replies

655666 Views

Last post by MisterM_74 View the latest post
Sun Dec 29, 2019 4:56 pm

Topics

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CVE-2019-9670 being actively exploited

Last post by apiening « Tue Jan 07, 2020 7:40 pm
Replies: 241
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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...
241 Replies

178098 Views

Last post by apiening View the latest post
Tue Jan 07, 2020 7:40 pm
A Grafana Dashboard for Zimbra Collaboration

Last post by bdardy « Fri Nov 22, 2019 10:43 am
Replies: 77
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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,...
77 Replies

87477 Views

Last post by bdardy View the latest post
Fri Nov 22, 2019 10:43 am
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

19502 Views

Last post by tonyg View the latest post
Thu Nov 07, 2019 9:13 pm
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

17606 Views

Last post by onzyg View the latest post
Mon Sep 09, 2019 7:54 pm
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

13064 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

131509 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

23318 Views

Last post by davidkillingsworth View the latest post
Thu May 30, 2019 12:12 pm
Mail Unreadable - Chinese Fonts

Last post by Teampouce « Wed Jan 22, 2020 3:51 pm

by Teampouce » Wed Jan 22, 2020 3:51 pm

Dear All,

I'm facing a strange issue when users received email, they got sometine mail with unreadable font like chinese font, please find a short...

0 Replies

27 Views

Last post by Teampouce View the latest post
Wed Jan 22, 2020 3:51 pm
Restore Appointments from Deleted Calendar?

Last post by Lewis-H « Wed Jan 22, 2020 3:46 pm
Replies: 1
by guigsilva » Fri Jan 17, 2020 12:50 pm

Hello!

We have a mistake deleted Calendar (yes removed from the trash too) but the appointments from this caledar still on Calendar´s Trash. We...

1 Replies

548 Views

Last post by Lewis-H View the latest post
Wed Jan 22, 2020 3:46 pm
IMPORT .PST FILE

Last post by Lewis-H « Wed Jan 22, 2020 3:44 pm
Replies: 3
by clelandrm » Thu Jan 16, 2020 6:14 pm

Hi, I need to import a .pst file (backup mails outlook) to the zimbra online platform. Is there a way to do this? Sorry if it is not the right place...

3 Replies

596 Views

Last post by Lewis-H View the latest post
Wed Jan 22, 2020 3:44 pm
Can't attach some files in HTML Client

Last post by imanudin11 « Wed Jan 22, 2020 3:17 pm
Replies: 12
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Attachment(s) by yeeP6rai » Fri Aug 23, 2019 11:46 am

I don't know did it before or after zimbra update from 8.7.11 to 8.8.15, but now I can't attach *.doc or *.odt files for example, but *.pdf I can...
12 Replies

4321 Views

Last post by imanudin11 View the latest post
Wed Jan 22, 2020 3:17 pm
Mail Transport Unavailable for specific email

Last post by Teampouce « Wed Jan 22, 2020 10:38 am
Replies: 1
by Teampouce » Tue Jan 14, 2020 12:32 pm

Dear All,

I need your help to debug a curious problem that occur only on a specific email address.

Let say for confidentiality the email with the...

1 Replies

240 Views

Last post by Teampouce View the latest post
Wed Jan 22, 2020 10:38 am
Zimbra SMTP relay Sparkpost?

Last post by killmasta93 « Tue Jan 21, 2020 5:26 pm
Replies: 3
by killmasta93 » Tue Jan 21, 2020 5:42 am

Hi,
I was wondering if someone could shed some light on the issue im having. Currently trying to configure sparkpost smtp relay on zimbra, on my...

3 Replies

240 Views

Last post by killmasta93 View the latest post
Tue Jan 21, 2020 5:26 pm
soap api: strange behavior after update

Last post by L. Mark Stone « Tue Jan 21, 2020 3:11 pm
Replies: 3
by yodog » Wed Dec 04, 2019 4:27 pm

zimbra: Release 8.8.15_GA_3869.RHEL7_64_20190917004220 RHEL7_64 NETWORK edition, Patch 8.8.15_P4.

i have a few scripts (mostly php) that need an...

3 Replies

425 Views

Last post by L. Mark Stone View the latest post
Tue Jan 21, 2020 3:11 pm
zmmailboxdctl fails - Insufficient threads

Last post by Sam252 « Tue Jan 21, 2020 1:04 pm
Replies: 1
by Sam252 » Mon Jan 20, 2020 9:20 pm

Zimbra is running under Oracle Linux 7.7 VM. Earlier the VM had 4 CPUs added and an additional 12GB of memory. This was after I had read through some...

1 Replies

230 Views

Last post by Sam252 View the latest post
Tue Jan 21, 2020 1:04 pm
Unknown command sent to server. ZxChatRequest

Last post by plagoutte « Tue Jan 21, 2020 9:59 am
Replies: 7
by ale.adco94 » Mon Jan 06, 2020 9:19 pm

I have updated to version 8.8.12 >> 8.8.15. The process apparently was successful, however when I log in to the web client I get the following...

7 Replies

1579 Views

Last post by plagoutte View the latest post
Tue Jan 21, 2020 9:59 am
internal mail stucks in queue ...

Last post by krahni « Tue Jan 21, 2020 7:00 am

by krahni » Tue Jan 21, 2020 7:00 am

hi,
configured server with name zimbra.company.de, maildomain is company.de.
sending external is o.k., but when sending mail from user1@company.de to...

0 Replies

101 Views

Last post by krahni View the latest post
Tue Jan 21, 2020 7:00 am
Warning: 2020 LDAP channel binding and LDAP signing requirement for Active Directory

Last post by gabaker « Mon Jan 20, 2020 5:06 pm

by gabaker » Mon Jan 20, 2020 5:06 pm

According to this article by Microsoft
in the March 2020 Windows updates, this LDAP channel binding and signing requirement for LDAP requests to AD...

0 Replies

190 Views

Last post by gabaker View the latest post
Mon Jan 20, 2020 5:06 pm
zimbra outgoing mail issue connection time out

Last post by DualBoot « Mon Jan 20, 2020 9:50 am
Replies: 4
by ANAYAALI2019 » Fri Jan 17, 2020 7:00 pm

Dear Team,
i am facing issue with my zimbra server here is log
i am unable to send external mail to any other service (like google.com etc)
email...

4 Replies

1319 Views

Last post by DualBoot View the latest post
Mon Jan 20, 2020 9:50 am
Connection timed out:7025 - Issue

Last post by bikash.jha « Mon Jan 20, 2020 6:25 am
Replies: 7
by hank314 » Fri Feb 16, 2018 9:00 am

Hi,
in a new installation of Zimbra 8.8.6 sometimes outgoing mails remain in queue:

Feb 16 08:56:10 zimbra postfix/error : 85994198DF65B:...

7 Replies

4836 Views

Last post by bikash.jha View the latest post
Mon Jan 20, 2020 6:25 am
How to block "on behalf of" emails in IMAP/POP outlook profile

Last post by swain « Mon Jan 20, 2020 5:28 am
Replies: 7
by jaismathew » Sun Jan 12, 2020 8:59 am

Hello,
I am using Zimbra 8.0.6 Network edition with 2000 users. I noticed that all POP/IMAP users can send mails with "on behalf of" inside...

7 Replies

1340 Views

Last post by swain View the latest post
Mon Jan 20, 2020 5:28 am
jsut install Zimbra

Last post by phoenix « Mon Jan 20, 2020 1:25 am
Replies: 1
by kdmiller45 » Sun Jan 19, 2020 11:23 pm

Just installed this server in the morning, looks sharp. enough get to the point huh
O/S Ubuntu 18.04 Server (not workstation)
installed the Zimbra...

1 Replies

271 Views

Last post by phoenix View the latest post
Mon Jan 20, 2020 1:25 am
Signed documents .p7s

Last post by dfreddie « Sat Jan 18, 2020 3:54 am
Replies: 3
by dfreddie » Wed Jan 15, 2020 8:08 pm

I can't attach this kind of documents not in web client nor in ZD.
Any advice welcomed!

3 Replies

987 Views

Last post by dfreddie View the latest post
Sat Jan 18, 2020 3:54 am
Disable Amavis/clamav/spamassassin

Last post by killmasta93 « Fri Jan 17, 2020 8:47 pm
Replies: 2
by killmasta93 » Sat Jan 11, 2020 9:57 pm

Hi,
I was wondering if someone could confirm if these steps i took completely disables clamav spamassassin and amavis as i have PMG Filter gateway so...

2 Replies

1518 Views

Last post by killmasta93 View the latest post
Fri Jan 17, 2020 8:47 pm
zimbra backup

Last post by phoenix « Fri Jan 17, 2020 6:55 pm
Replies: 1
by ANAYAALI2019 » Fri Jan 17, 2020 5:03 pm

how to backup domain ,accounts, & emails

1 Replies

684 Views

Last post by phoenix View the latest post
Fri Jan 17, 2020 6:55 pm

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