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Authentication Bypass in MailboxImportServlet vulnerability (reminder)
https://blog.zimbra.com/2022/08/authentication-bypass-in-mailboximportservlet-vulnerability/

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Rspamd: A replacement for Spamassassin & Postscreen

Last post by imx « Tue Jul 26, 2022 11:32 am
Replies: 225
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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...
225 Replies

3092943 Views

Last post by imx View the latest post
Tue Jul 26, 2022 11:32 am

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STARTTLS everywhere

Last post by rokoyato « Fri Sep 02, 2022 10:13 am
Replies: 10
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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...
10 Replies

58643 Views

Last post by rokoyato View the latest post
Fri Sep 02, 2022 10:13 am
Zimbra 9 - FOSS

Last post by phoenix « Fri Aug 19, 2022 2:00 pm
Replies: 101
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by jorgedlcruz » Wed Apr 15, 2020 8:22 am

Hi guys,
Have you seen the unofficial version Beezim has released? It is for RHEL/CentOS, but interesting -

I was looking at how to build your own...
101 Replies

238790 Views

Last post by phoenix View the latest post
Fri Aug 19, 2022 2:00 pm
ZCS 9 Patch 26 available & Zimbra ZCS OSS Build

Last post by ghen « Sun Aug 14, 2022 8:17 pm
Replies: 12
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by phoenix » Thu Jul 28, 2022 8:27 pm

The latest patch release is now available from Zimbra, it can be downloaded from the ZCS Repo - make sure you take a backup first and reboot after...
12 Replies

4160 Views

Last post by ghen View the latest post
Sun Aug 14, 2022 8:17 pm
certbot-zimbra v0.2

Last post by barrydegraaff « Fri Jul 01, 2022 8:21 am
Replies: 8
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....

8 Replies

64206 Views

Last post by barrydegraaff View the latest post
Fri Jul 01, 2022 8:21 am
Another Letsencrypt method

Last post by barrydegraaff « Fri Jul 01, 2022 8:21 am
Replies: 144
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Attachment(s) 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...
144 Replies

399027 Views

Last post by barrydegraaff View the latest post
Fri Jul 01, 2022 8:21 am
DO NOT INSTALL the Kepler 9.0.0 Patch 25 or 8.8.15 Patch 32

Last post by phoenix « Fri Jun 17, 2022 7:23 pm
Replies: 15
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by phoenix » Fri Jun 17, 2022 6:40 am

Unfortunately Zimbra don't seem to realise they have a user forum here, they've posted a warning about the current Patch release on a wiki that, I'd...
15 Replies

4842 Views

Last post by phoenix View the latest post
Fri Jun 17, 2022 7:23 pm
Open Source, an interesting read

Last post by Klug « Fri Jul 09, 2021 8:14 am
Replies: 7
by phoenix » Tue Jul 21, 2020 9:47 am

I somehow seem to have missed this interesting article:

I think there are a few lessons and words of wisdom in there for Synacor but I don't think...

7 Replies

33329 Views

Last post by Klug View the latest post
Fri Jul 09, 2021 8:14 am
A Grafana Dashboard for Zimbra Collaboration

Last post by davidkillingsworth « Thu Apr 08, 2021 4:11 am
Replies: 84
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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,...
84 Replies

295413 Views

Last post by davidkillingsworth View the latest post
Thu Apr 08, 2021 4:11 am
Zimbra 9 now available - in case anyone missed the blog post

Last post by rholighaus « Tue May 19, 2020 5:06 pm
Replies: 42
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by phoenix » Tue Apr 07, 2020 5:44 pm

Release Notes:

Before anyone asks, there doesn't appear to be an OSS version available (yet?) for download and the new Modern Web App is only...
42 Replies

127856 Views

Last post by rholighaus View the latest post
Tue May 19, 2020 5:06 pm
How to monitor Zimbra using pflogsumm and NET-SNMP-EXTEND

Last post by Lewis-H « Wed Apr 22, 2020 1:24 pm
Replies: 8
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...

8 Replies

65562 Views

Last post by Lewis-H View the latest post
Wed Apr 22, 2020 1:24 pm
CVE-2019-9670 being actively exploited (Hacked Server)

Last post by phoenix « Sun Feb 16, 2020 7:22 am
Replies: 248
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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...
248 Replies

566490 Views

Last post by phoenix View the latest post
Sun Feb 16, 2020 7:22 am
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

80734 Views

Last post by davidkillingsworth View the latest post
Thu May 30, 2019 12:12 pm
Help on debugging an issue with SOAP

Last post by jasggomes « Thu Sep 29, 2022 9:25 pm
Replies: 2
by jasggomes » Wed Sep 28, 2022 9:54 pm

Hello all,

Several users are locked by too many attempts from SMTP via SOAP a few days ago.
I m trying to figure out the root cause of this but I...

2 Replies

472 Views

Last post by jasggomes View the latest post
Thu Sep 29, 2022 9:25 pm
Import ldap from 8.0.9 to 9.0.0

Last post by rosch « Thu Sep 29, 2022 9:55 am
Replies: 2
by rosch » Thu Sep 29, 2022 8:48 am

Dear all,

I followed the wiki to import the LDAP data to my new server ZCS 9.0.0.

When running libexec/zmslapadd ldap.bak I get the following...

2 Replies

307 Views

Last post by rosch View the latest post
Thu Sep 29, 2022 9:55 am
Attacker managed to upload files into Web Client directory

Last post by admin_erdemkiramer « Wed Sep 28, 2022 3:25 pm
Replies: 17
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by yeak » Sat Sep 10, 2022 4:26 am

We have an incident where the attacker managed to upload jsp files into Web Client /public directory by simply sending in an email with malicious...
17 Replies

5715 Views

Last post by admin_erdemkiramer View the latest post
Wed Sep 28, 2022 3:25 pm
Opendkim se detiene solo (stops by itself)

Last post by phoenix « Wed Sep 28, 2022 2:08 pm
Replies: 3
by varon77 » Wed Sep 28, 2022 11:24 am

Tengo Zimbra 8.6 en centos 7 hace varios años. Ahora de un dia al otro comence a tener problemas con Opendkim. Se detiene por algun motivo que nose...

3 Replies

433 Views

Last post by phoenix View the latest post
Wed Sep 28, 2022 2:08 pm
java.lang.NullPointerException: Cannot invoke "javax.mail.internet.MimeMessage.getSentDate()" because "m

Last post by rvalenzuela « Wed Sep 28, 2022 1:55 pm

by rvalenzuela » Wed Sep 28, 2022 1:55 pm

When I execute a filter regarding dates (in order to delete one user inbox) in web admin console I get error below:

method: [unknown]...

0 Replies

305 Views

Last post by rvalenzuela View the latest post
Wed Sep 28, 2022 1:55 pm
Question about always_bcc

Last post by AwesomeAxolotl « Wed Sep 28, 2022 10:44 am

by AwesomeAxolotl » Wed Sep 28, 2022 10:44 am

Hello,

can someone please tell me if an always_bcc entry gets retained in an Zimbra update?

Commands:
/opt/zimbra/bin/postconf -e...

0 Replies

191 Views

Last post by AwesomeAxolotl View the latest post
Wed Sep 28, 2022 10:44 am
Zimbra 8.8.15 P33: Re-enable TLSv1.0/1.1 for IMAPS/POP3S

Last post by phoenix « Wed Sep 28, 2022 6:22 am
Replies: 3
by Winkee » Mon Sep 26, 2022 5:37 pm

Hello!

Can you help me please to understand, how to re-enable TLSv1.0/1.1 for POP3S and IMAPS. After i updated my server to 8.8.15 P33 (from ~P20),...

3 Replies

808 Views

Last post by phoenix View the latest post
Wed Sep 28, 2022 6:22 am
Do I have to tell Zimbra it's NAT'ed now?

Last post by phoenix « Wed Sep 28, 2022 6:16 am
Replies: 1
by zim_mike » Wed Sep 28, 2022 3:43 am

I have a zimbra server that has been online for years with a public IP and the centos firewall for protection.
Now I have to move that server to...

1 Replies

235 Views

Last post by phoenix View the latest post
Wed Sep 28, 2022 6:16 am
Manage distributed bruteforce ?

Last post by JDunphy « Tue Sep 27, 2022 3:31 pm
Replies: 3
by rokoyato » Mon Sep 26, 2022 12:29 pm

Hi,

Does anyone have a proper solution to deal with distributed bruteforce ?

I've got an attack with thousands of ips where ip are used only twice,...

3 Replies

1691 Views

Last post by JDunphy View the latest post
Tue Sep 27, 2022 3:31 pm
Huge CPU Java

Last post by Se7enPRO « Tue Sep 27, 2022 12:01 pm
Replies: 1
Attachment(s) by weblike » Fri Sep 23, 2022 1:01 pm

I have a 8.8.15 P33 installation and experiencing a huge CPU usage

Screenshot_11.png

Does anyone experiencing this?
Any solution would be much...

1 Replies

840 Views

Last post by Se7enPRO View the latest post
Tue Sep 27, 2022 12:01 pm
Standard client (HTML) prints tinymce javascript to compose view output

Last post by liverpoolfcfan « Tue Sep 27, 2022 10:19 am
Replies: 2
Attachment(s) by nowrap » Mon Sep 26, 2022 12:32 pm

Hello,

using the standard client (HTML) prints a lot of javascript code to html output of the mail compose view (see screenshot).

Any suggestions?...

2 Replies

534 Views

Last post by liverpoolfcfan View the latest post
Tue Sep 27, 2022 10:19 am
[SOLVED] - Zimbra 8.8.15 - SpamAssassin not checking SPF for incoming email (part of them)

Last post by lovelord « Tue Sep 27, 2022 7:14 am
Replies: 5
by lovelord » Tue Sep 20, 2022 2:09 pm

Hello everybody admins,

I'm a little bit confused because I've just discovered that my Zimbra main install in office is not checking SPF for...

5 Replies

1681 Views

Last post by lovelord View the latest post
Tue Sep 27, 2022 7:14 am
doMailboxMove leads to broken mailbox

Last post by L. Mark Stone « Mon Sep 26, 2022 1:14 pm
Replies: 5
by thomas.klaube » Thu Sep 22, 2022 9:05 am

Hi all,

on a Zimbra 8.8.15 multiserver setup we moved a mailbox to another server. On zimbra01.server.com we did:

zxsuite hsm doMailboxMove...

5 Replies

1022 Views

Last post by L. Mark Stone View the latest post
Mon Sep 26, 2022 1:14 pm

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