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Internet root zone Key Signing Key rollover on Sunday, October 11, 2026

Last post by isol « Mon Oct 12, 2026 6:12 pm
Replies: 1
by rleiker » Mon Oct 12, 2026 3:59 pm

For anyone who has a Zimbra install running on Ubuntu 22.04 or earlier with DNSSEC validation enabled, you likely began experiencing trouble with...

1 Replies

344 Views

Last post by isol
Mon Oct 12, 2026 6:12 pm
suddenly no dns resolv

Last post by isol « Mon Oct 12, 2026 6:07 pm
Replies: 3
by isol » Mon Oct 12, 2026 12:45 pm

we have
/run/resolvconf/resolv.conf:6:nameserver 127.0.0.1
/run/resolvconf/interface/lo.zimbra-unbound:1:nameserver 127.0.0.1

but on localhost,...

3 Replies

241 Views

Last post by isol
Mon Oct 12, 2026 6:07 pm
softwaretech process running high cpu?

Last post by kayasaman « Sun Oct 11, 2026 6:47 pm
Replies: 31
by kayasaman » Mon Oct 05, 2026 4:11 am
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Hi guys,

I have just rebuilt my zimbra server. It's running on 8.8.15

Now I have a process called softwaretech running at 500-600% cpu?

What is...
31 Replies

9401 Views

Last post by kayasaman
Sun Oct 11, 2026 6:47 pm
MySQL won't start and claims InnoDB corrupted. Can the DB be salvaged and which way to turn?

Last post by kayasaman « Mon Oct 05, 2026 8:49 am
Replies: 31
by kayasaman » Wed Sep 09, 2026 3:54 pm
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Hi everyone,

I posted this as a comment to my other thread about installing 8.8.15 Open Source edition on Rocky Linux. But I really need to get a...
31 Replies

21743 Views

Last post by kayasaman
Mon Oct 05, 2026 8:49 am
More XSS vulnerabilities: vote for content-security-policy

Last post by ghen « Mon Oct 05, 2026 7:59 am
Replies: 10
by halfgaar » Sat Jul 11, 2026 5:24 pm
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Zimbra 10.1.19 fixes another critical XSS bug (and note, this fix is not yet in the open source builds, because of the embargo):

There is a...
10 Replies

29406 Views

Last post by ghen
Mon Oct 05, 2026 7:59 am
Autocomplete behaviour change between 9.0 and 10.1

Last post by andrey.ivanov « Fri Sep 25, 2026 7:43 pm
Replies: 35
by Klug » Fri Jun 13, 2025 1:02 pm
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Hello.

I've been working on some upgrade from 9.0 to 10.1 this week (rolling upgrade, multi-servers).
We've noticed a change of behavior in...
35 Replies

96825 Views

Last post by andrey.ivanov
Fri Sep 25, 2026 7:43 pm
Keep switching back to classic client – what features are missing for the final migration to modern web client?

Last post by oetiker « Fri Sep 25, 2026 6:15 am
Replies: 17
by oetiker » Thu Nov 20, 2025 8:08 am
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Hi,

I've tried multiple times to switch to the modern web client permanently, but I keep reverting to the classic client because several important...
17 Replies

63289 Views

Last post by oetiker
Fri Sep 25, 2026 6:15 am
Attack? CLI commands injection during SMTP connection

Last post by L. Mark Stone « Thu Sep 24, 2026 5:09 pm
Replies: 35
by dbayer » Fri Aug 07, 2026 9:09 pm
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Hello Everyone,

I've gotten these error emails from Zimbra about malicious CLI code injection during SMTP connections. Below are a few examples....
35 Replies

55388 Views

Last post by L. Mark Stone
Thu Sep 24, 2026 5:09 pm
<SOLVED> zmmailboxdmgr log messages?

Last post by Lukasz Michalik « Wed Sep 23, 2026 6:35 am
Replies: 3
by sr57 » Mon Mar 27, 2023 7:12 am

Hello all,

I have numerous log messages as following

zimbra : TTY=unknown ; PWD=/opt/zimbra ; USER=root ;...

3 Replies

1719 Views

Last post by Lukasz Michalik
Wed Sep 23, 2026 6:35 am
Installing Zimbra 10 and precautions

Last post by LAB3W.ORJ « Wed Sep 16, 2026 12:51 pm
Replies: 4
by LAB3W.ORJ » Fri Sep 11, 2026 1:48 pm

Hi; I've just installed Zimbra 10.

zimbra@mail:~$ zmcontrol -v
Release 10.1.20.GA.0326.UBUNTU22.64 UBUNTU22_64 FOSS edition0.

I have some...

4 Replies

9177 Views

Last post by LAB3W.ORJ
Wed Sep 16, 2026 12:51 pm
[SOLVED] Here goes nothing...

Last post by Baylink « Wed Sep 16, 2026 6:11 am
Replies: 13
by Baylink » Sat Nov 14, 2009 7:45 pm
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I'm upgrading 5.0.18 to 6.0.2 under a live install. Aren't weekends great?
I have lots of disk space, so I rsynced my entire /opt/zimbra directory...
13 Replies

5283 Views

Last post by Baylink
Wed Sep 16, 2026 6:11 am
Zimbra OSE 10.x Backup - Whats the collective wisdom on the best approach?

Last post by realsparticle « Mon Sep 14, 2026 10:49 am
Replies: 2
by realsparticle » Sun Sep 13, 2026 9:00 am

All,

Looking for some guidance on the most robust and reliable zimbra 10.x OSE backup applications, methodologies and strategies.

Many thanks
Spart

2 Replies

1992 Views

Last post by realsparticle
Mon Sep 14, 2026 10:49 am
Can't view or download pdf attachment through webmail zimbra

Last post by pianziva « Thu Sep 10, 2026 4:12 pm

by pianziva » Thu Sep 10, 2026 4:12 pm

Hello,

I've installed zimbra version 10.1.18.GA.4200001.UBUNTU24.64 UBUNTU24_64 FOSS, but when trying view or download pdf using webmail zimbra ive...

0 Replies

2409 Views

Last post by pianziva
Thu Sep 10, 2026 4:12 pm
Zimbra Web Firewall

Last post by Klug « Sun Aug 30, 2026 9:09 am
Replies: 2
by Klug » Sun Aug 30, 2026 8:18 am

Disclaimer: made with Claude.

I think I saw something like months this but could not find it.
We have to deal with some old 8.8.15 servers that...

2 Replies

2428 Views

Last post by Klug
Sun Aug 30, 2026 9:09 am
ATTACK? ATTACK Proxy?

Last post by BradC « Sun Aug 23, 2026 1:34 pm
Replies: 3
by Vincent Chen » Sun Aug 23, 2026 11:04 am

Hi, all

Recently I received many smtp request from different source. It looks like this

Aug 23 16:23:22 zimbra postfix/smtpd : NOQUEUE: filter:...

3 Replies

3780 Views

Last post by BradC
Sun Aug 23, 2026 1:34 pm
Web GUI cbpolicyd Limits page is blank.

Last post by jusuf_ik « Mon Aug 17, 2026 5:45 am
Replies: 4
by someone » Sat Feb 21, 2026 8:16 pm

Hi,

I have installed cbpolicyd (with sqlite) years ago on our old Zimbra v.8 or so, (on old Ubuntu, v.16 or so) using the instructions on the page...

4 Replies

8572 Views

Last post by jusuf_ik
Mon Aug 17, 2026 5:45 am
Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite

Last post by Klug « Fri Jul 24, 2026 3:58 pm
Replies: 2
by rleiker » Thu Jul 23, 2026 4:30 pm

For the benefit of awareness, here is an advisory released today by CISA in the US related to active exploitation of vulnerabilities in Zimbra:...

2 Replies

6039 Views

Last post by Klug
Fri Jul 24, 2026 3:58 pm
error when force users to change password in zimbra 10

Last post by Klug « Thu Jul 23, 2026 7:27 am
Replies: 26
by izadi60 » Mon Jan 29, 2024 6:13 am
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Hi
I installed ZCS opensource 10 on Ubuntu 20.04
I faced a problem: I want to force users change their password in first login.I check Must Change...
26 Replies

46255 Views

Last post by Klug
Thu Jul 23, 2026 7:27 am
zmcertmgr verifycrt requirement

Last post by halfgaar « Fri Jul 17, 2026 11:31 am
Replies: 5
by yeak » Thu Jun 25, 2026 8:51 am

The zmcertmgr will verify the SSL cert until the Root Authority level. But the usual SSL cert coming from the CA provider only has Intermedia CA, no...

5 Replies

22003 Views

Last post by halfgaar
Fri Jul 17, 2026 11:31 am
Zimbra not processing incoming email

Last post by tlgerdes « Tue Jun 23, 2026 1:01 am
Replies: 5
by tlgerdes » Mon Jun 22, 2026 11:15 pm

Hi,

Something broke on my Zimbra 9.0 server yesterday when i accidently powered it off. Send mail works fine. Incoming mail is received by the...

5 Replies

12346 Views

Last post by tlgerdes
Tue Jun 23, 2026 1:01 am
Nginx CVE-2026-42945, CVE-2026-42946, CVE-2026-40701, CVE-2026-42934

Last post by halfgaar « Sat Jun 20, 2026 7:10 am
Replies: 22
by halfgaar » Thu May 14, 2026 11:26 pm
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Nginx vulnerabilities:

Zimbra packages its own Nginx (and so is like still vulnerable):

# aptitude search nginx|grep ^i
i A zimbra-nginx -...
22 Replies

42603 Views

Last post by halfgaar
Sat Jun 20, 2026 7:10 am
How to Get Mailbox Sizes for All Active Accounts – Fastest Method

Last post by hashir « Tue Jun 09, 2026 7:05 am
Replies: 2
by hashir » Tue May 19, 2026 6:48 am

Here is the fastest method I found to pull mailbox sizes for all active accounts in one go.

Step 1 — Export active accounts
zmaccts | grep active...

2 Replies

13794 Views

Last post by hashir
Tue Jun 09, 2026 7:05 am
Broken Share Checker Script - Updated for 2026

Last post by JDunphy « Wed Jun 03, 2026 3:50 pm
Replies: 1
by L. Mark Stone » Sat May 30, 2026 6:46 pm

We do a fair number of Zimbra migrations aside from Rolling Upgrades (e.g. FOSS > NE) and have found that broken shares get in the way. Back in...

1 Replies

18960 Views

Last post by JDunphy
Wed Jun 03, 2026 3:50 pm
Zimbra 10.x Options

Last post by L. Mark Stone « Tue May 26, 2026 2:15 pm
Replies: 4
by drdre » Sun May 24, 2026 5:55 am

Good night all,

I havent used zimbra in almost a decade. We are presently looking and moving our email off of exchange server and looking at options...

4 Replies

13337 Views

Last post by L. Mark Stone
Tue May 26, 2026 2:15 pm
Can't renew SSL commercial

Last post by halfgaar « Mon May 18, 2026 9:14 pm
Replies: 2
by pianziva » Fri May 15, 2026 11:31 am

Hi,

Does anyonw know what is causing this CA certificate failed to verify ? i had updated those CA from the reseller of sectigo, but still failed....

2 Replies

9913 Views

Last post by halfgaar
Mon May 18, 2026 9:14 pm

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