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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

166056 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

533854 Views

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

Topics

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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

60966 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

11471 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

137777 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

8681 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

101051 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

16368 Views

Last post by davidkillingsworth View the latest post
Thu May 30, 2019 12:12 pm
How to monitor Zimbra using pflogsumm and NET-SNMP-EXTEND

Last post by jepy « Wed Jan 23, 2019 3:10 am
Replies: 6
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...

6 Replies

14063 Views

Last post by jepy View the latest post
Wed Jan 23, 2019 3:10 am
Strange Behavior On An HTML Email

Last post by JDunphy « Fri Oct 18, 2019 12:54 am
Replies: 1
by guitardood » Thu Oct 17, 2019 5:43 pm

Hello,
We're running a Zimbra server, Release 8.8.15.GA.3829.UBUNTU16.64 UBUNTU16_64 FOSS edition, Patch 8.8.15_P2 on Ubuntu 16.04.6 LTS.

I have a...

1 Replies

200 Views

Last post by JDunphy View the latest post
Fri Oct 18, 2019 12:54 am
allow user to admin domain

Last post by gpatawaran « Thu Oct 17, 2019 8:30 pm

by gpatawaran » Thu Oct 17, 2019 8:30 pm

Hi All,

Just recently inherited a vmware zimbra version 8 server. I currently have the following two accounts. The internal user cannot see all the...

0 Replies

38 Views

Last post by gpatawaran View the latest post
Thu Oct 17, 2019 8:30 pm
blacklist a domain extension

Last post by JDunphy « Thu Oct 17, 2019 7:22 pm
Replies: 9
by DennisT » Wed Oct 02, 2019 3:53 pm

I'm getting a lot of spam for a multitude of sources, all with the .icu extension on the domain name, eg werstupid.icu, werspammers.icu, etc.

Is...

9 Replies

1173 Views

Last post by JDunphy View the latest post
Thu Oct 17, 2019 7:22 pm
i need help with snmp stopped zmswatch is not running

Last post by tonyg « Thu Oct 17, 2019 7:10 pm
Replies: 2
by hasa » Wed Jun 26, 2019 12:52 am

please need help, i am newbe on zimbra, yesterday i install zimbra 8.8.10 0n centos 7,,, i am not install dnscache i am use bind9 for domain name,,,...

2 Replies

14477 Views

Last post by tonyg View the latest post
Thu Oct 17, 2019 7:10 pm
Cant get rid of memcache issue

Last post by phoenix « Thu Oct 17, 2019 3:40 pm
Replies: 1
by lancedavis » Thu Oct 17, 2019 1:36 pm

We have a single Zimbra server and memcache has been disabled as well as imap and web proxies being disabled - but the server is running really...

1 Replies

120 Views

Last post by phoenix View the latest post
Thu Oct 17, 2019 3:40 pm
"nginxlookup - user not found" Brute force

Last post by yeeP6rai « Thu Oct 17, 2019 2:42 pm

by yeeP6rai » Thu Oct 17, 2019 2:42 pm

Hi,

Release 8.8.15_GA_3829.RHEL7_64_20190718141144 RHEL7_64 FOSS edition, Patch 8.8.15_P2

What mean this messages?
2019-10-17 00:01:06,763...

0 Replies

82 Views

Last post by yeeP6rai View the latest post
Thu Oct 17, 2019 2:42 pm
com_zimbra_viewmail problem

Last post by jakubdg « Thu Oct 17, 2019 12:36 pm

by jakubdg » Thu Oct 17, 2019 12:36 pm

Hello,
Yesterday I upgraded the version from 8.7 to 8.8.15_GA_3869.FOSS and now I have a problem with viewmail - it doesn't work, I can't see emails....

0 Replies

37 Views

Last post by jakubdg View the latest post
Thu Oct 17, 2019 12:36 pm
An unknown error has occurred - Webmail Login

Last post by thomas.maeder « Thu Oct 17, 2019 7:54 am
Replies: 3
Attachment(s) by kelvinsm » Sun Jan 20, 2019 12:59 am

Hi, im facing a problem login on webmail on my new installation of zimbra 8.8.10_GA_3716 on ubuntu 16.04, it installed without any errors, but when i...

3 Replies

5565 Views

Last post by thomas.maeder View the latest post
Thu Oct 17, 2019 7:54 am
Is not authorized to relay messages

Last post by Jhonmicky « Wed Oct 16, 2019 8:49 pm

by Jhonmicky » Wed Oct 16, 2019 8:49 pm

Hello everyone,,
I am using Zimbra Collaboration 8.8.8.GA.2009 Open Source Software for Mailing solution. My Mail server is working perfectly for all...

0 Replies

185 Views

Last post by Jhonmicky View the latest post
Wed Oct 16, 2019 8:49 pm
Brute force attack

Last post by tonyg « Wed Oct 16, 2019 7:55 pm
Replies: 4
by kyiu » Thu Sep 12, 2019 4:39 pm

I'm running the Zimbra 8.8.7 server behind my firewall. I'm getting brute force attack on a user. I want to know the actual IP address of the...

4 Replies

929 Views

Last post by tonyg View the latest post
Wed Oct 16, 2019 7:55 pm
processes cpio after upgrade to 8.8.15

Last post by erick.oliveira « Wed Oct 16, 2019 3:19 pm

by erick.oliveira » Wed Oct 16, 2019 3:19 pm

Hello guys,

I'm working a few months with Zimbra and now I have upgraded my server to 8.8.15 version.
After the upgrade I have some processes like...

0 Replies

132 Views

Last post by erick.oliveira View the latest post
Wed Oct 16, 2019 3:19 pm
How to find out what user is sending mail with from=<>

Last post by davidkillingsworth « Wed Oct 16, 2019 1:35 pm
Replies: 1
by davidkillingsworth » Wed Oct 16, 2019 1:06 pm

We have been getting black listed on a few RBLs and having general mail delivery issues to @yahoo and @aol domains for a few days now.

We starting...

1 Replies

201 Views

Last post by davidkillingsworth View the latest post
Wed Oct 16, 2019 1:35 pm
Restrict webmail access to certain web browsers

Last post by renato.maciel « Wed Oct 16, 2019 1:24 pm

by renato.maciel » Wed Oct 16, 2019 1:24 pm

I'd like to know if it is possible to restrict (deny) the access to Webmail over some web browsers.

e.g. If I want to deny all connections from...

0 Replies

90 Views

Last post by renato.maciel View the latest post
Wed Oct 16, 2019 1:24 pm
zmspamextract fails to pull emails from junk or ham account

Last post by yeeP6rai « Wed Oct 16, 2019 11:06 am
Replies: 31
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by guilhermehnog » Thu Aug 15, 2019 10:11 pm

Hi.
i'm new to zimbra and i would be really grateful if one of you could help me.

I'm running zimbra 8.8.15 on a CentOS 7 and is sending and...
31 Replies

8184 Views

Last post by yeeP6rai View the latest post
Wed Oct 16, 2019 11:06 am
NG HSM does not move all expected blobfiles

Last post by gabrieles « Wed Oct 16, 2019 9:11 am

by gabrieles » Wed Oct 16, 2019 9:11 am

Problem:
We found on some customer that NG HSM doMoveBlobs does not seems to move all expected blobs. We suspect that it does not select correctly...

0 Replies

120 Views

Last post by gabrieles View the latest post
Wed Oct 16, 2019 9:11 am
Postmap *** Error in `postmap': double free or corruption (!prev): 0x0000000001f8d600 ***

Last post by yeeP6rai « Wed Oct 16, 2019 8:42 am

by yeeP6rai » Wed Oct 16, 2019 8:42 am

[zimbra@mail ~]$ zmcontrol -v
Release 8.8.15_GA_3829.RHEL7_64_20190718141144 RHEL7_64 FOSS edition, Patch 8.8.15_P2....

0 Replies

71 Views

Last post by yeeP6rai View the latest post
Wed Oct 16, 2019 8:42 am
Script to investigate nginx.access.log and attackers

Last post by Peter Parker « Wed Oct 16, 2019 8:15 am
Replies: 3
by JDunphy » Tue Apr 30, 2019 11:57 pm

I would like to share a tool I have been using to investigate attacks against our zimbra servers with recent RCE/SSRF's. Without arguments it will...

3 Replies

1294 Views

Last post by Peter Parker View the latest post
Wed Oct 16, 2019 8:15 am
blog.zimbra.com

Last post by phoenix « Wed Oct 16, 2019 7:08 am
Replies: 3
by leets » Tue Oct 15, 2019 5:45 am

Any problem with

?
Seems like it is hacked

3 Replies

305 Views

Last post by phoenix View the latest post
Wed Oct 16, 2019 7:08 am

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