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More XSS vulnerabilities: vote for content-security-policy

Last post by halfgaar « Mon Jul 13, 2026 4:00 pm
Replies: 3
by halfgaar » Sat Jul 11, 2026 5:24 pm

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...

3 Replies

6735 Views

Last post by halfgaar
Mon Jul 13, 2026 4:00 pm
zmcertmgr verifycrt requirement

Last post by adrian.gibanel.btactic « Fri Jun 26, 2026 7:32 am
Replies: 4
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...

4 Replies

16782 Views

Last post by adrian.gibanel.btactic
Fri Jun 26, 2026 7:32 am
Broken Share Checker Script - Updated for 2026

Last post by camdenriley « Wed Jun 24, 2026 7:10 am
Replies: 2
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...

2 Replies

13754 Views

Last post by camdenriley
Wed Jun 24, 2026 7:10 am
Zimbra SSDB resource pool limits

Last post by camdenriley « Tue Jun 23, 2026 8:37 am
Replies: 2
by ghen » Thu Apr 30, 2026 10:20 am

Hi

Does anyone here have zimbraSSDBResourcePoolSize and/or zimbraSSDBResourcePoolTimeout set to non-zero values?

We are experiencing occasional...

2 Replies

5480 Views

Last post by camdenriley
Tue Jun 23, 2026 8:37 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

8137 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
1

2

3
Nginx vulnerabilities:

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

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

30779 Views

Last post by halfgaar
Sat Jun 20, 2026 7:10 am
Autocomplete behaviour change between 9.0 and 10.1

Last post by andrey.ivanov « Tue Jun 09, 2026 8:18 am
Replies: 34
by Klug » Fri Jun 13, 2025 1:02 pm
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2

3

4
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...
34 Replies

80500 Views

Last post by andrey.ivanov
Tue Jun 09, 2026 8:18 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

7834 Views

Last post by hashir
Tue Jun 09, 2026 7:05 am
Keep switching back to classic client – what features are missing for the final migration to modern web client?

Last post by oetiker « Fri May 29, 2026 7:59 pm
Replies: 13
by oetiker » Thu Nov 20, 2025 8:08 am
1

2
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...
13 Replies

53433 Views

Last post by oetiker
Fri May 29, 2026 7:59 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

9117 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

5962 Views

Last post by halfgaar
Mon May 18, 2026 9:14 pm
Zimbra Out-of-Office: Different Auto-Reply per "To" Address?

Last post by hanmira « Sat May 16, 2026 2:24 am
Replies: 2
by oetiker » Mon Mar 09, 2026 10:12 am

Hey everyone,

I'm running into a limitation with Zimbra's built-in Out-of-Office (Vacation) feature: it only allows you to set a single auto-reply...

2 Replies

34730 Views

Last post by hanmira
Sat May 16, 2026 2:24 am
SPAM Mail from admin to admin email with a fake address.

Last post by aavvll « Tue May 12, 2026 9:08 am
Replies: 2
by aavvll » Sun May 10, 2026 2:37 pm

I have a Zimbra 10.1.16 server.
I started receiving ransomware messages sent to my admin@domain.com email address from admin@domain.com.
The mail...

2 Replies

10962 Views

Last post by aavvll
Tue May 12, 2026 9:08 am
Zimbra Sales Contacts

Last post by robsie « Wed May 06, 2026 3:04 pm
Replies: 1
by tlgerdes » Thu Apr 23, 2026 7:10 am

Hi,

Can someone PM me a Zimbra sales contact?

I have submitted the form 3 time in the last 3 weeks and no one has responded.

I have an existing...

1 Replies

15595 Views

Last post by robsie
Wed May 06, 2026 3:04 pm
Change in authentication failure logging patterns in Zimbra 10.1.x ?

Last post by dapa6 « Wed Apr 29, 2026 9:46 am
Replies: 2
by dapa6 » Tue Apr 28, 2026 6:28 pm

Hello

on a 10.1.x installation, I am noticing a different behavior in logging pattern of failed authentications (ref. audit.log) that is consistent...

2 Replies

5439 Views

Last post by dapa6
Wed Apr 29, 2026 9:46 am
EAS Mail retention settings on IOS

Last post by BradC « Sun Apr 26, 2026 5:19 am

by BradC » Sun Apr 26, 2026 5:19 am

We have one client on IOS who wanted to sync their entire mailbox rather than the default one month setting. I made the change in the COS which...

0 Replies

16455 Views

Last post by BradC
Sun Apr 26, 2026 5:19 am
What is the best way to change a password in Active Directory using Zimbra?

Last post by Nuce « Tue Apr 21, 2026 5:56 am

by Nuce » Tue Apr 21, 2026 5:56 am

I keep coming across the ADPassword extension. Is that the best solution? Are there simpler methods? What do you guys use?

0 Replies

29665 Views

Last post by Nuce
Tue Apr 21, 2026 5:56 am
Execute or apply a mail filter from the command line

Last post by liverpoolfcfan « Mon Apr 20, 2026 7:55 pm
Replies: 4
by walter_arguello » Sat Jun 02, 2012 7:56 am

Hi!
Does anyone know if there is any way to run a mail filter using the CLI? :D

4 Replies

26182 Views

Last post by liverpoolfcfan
Mon Apr 20, 2026 7:55 pm
Dynamic List referencing two LDAP attributes, to include both with or logic.

Last post by yellowhousejake « Wed Apr 08, 2026 6:28 pm
Replies: 1
by yellowhousejake » Wed Apr 08, 2026 5:55 pm

I've taken over for DAve now that he has retired. I received a request from a department head to add a receptionist from another department to that...

1 Replies

32677 Views

Last post by yellowhousejake
Wed Apr 08, 2026 6:28 pm
Ubuntu 24.04

Last post by BradC « Wed Apr 08, 2026 3:24 am
Replies: 4
by BradC » Fri Feb 06, 2026 3:19 am

I did a few test installs on a staging machine. For whatever reason, Synacor has listed systemd-resolved as a dependency in zimbra-os-requirements...

4 Replies

15308 Views

Last post by BradC
Wed Apr 08, 2026 3:24 am
difference between /opt/zimbra/store and zmprov gqu

Last post by Klug « Thu Apr 02, 2026 7:53 am
Replies: 1
by anncarson » Thu Apr 02, 2026 6:59 am

I have an anomaly in my zimbra server
For some accounts the size indicated by zmprov gqu is excessively smaller than the size of the mailbox in...

1 Replies

7386 Views

Last post by Klug
Thu Apr 02, 2026 7:53 am
Associate failed logins with IPs?

Last post by milauria « Fri Mar 27, 2026 1:25 am
Replies: 1
by Domovoj » Thu Mar 26, 2026 8:51 am

I see tons of login attempts to non-existent accounts (many are aliases of an actual account) in mailbox.log, and similar SMTP auth failures in...

1 Replies

8044 Views

Last post by milauria
Fri Mar 27, 2026 1:25 am
[FOSS] 10.1.16 list for file integrity check

Last post by zmcontrol « Wed Mar 25, 2026 12:02 am

by zmcontrol » Wed Mar 25, 2026 12:02 am

Hello,

In my test environment I need to check the file integrity of the zimbra installation.
I noticed this nice script, but didn't previously run...

0 Replies

31392 Views

Last post by zmcontrol
Wed Mar 25, 2026 12:02 am
Z-Push Zimbra

Last post by BradC « Fri Mar 20, 2026 1:54 am
Replies: 4
by dibo69 » Wed Mar 16, 2022 7:46 pm

Hi,

I did a new installation of Zimbra 8.8.15 and Z-Push Zimbra Backend.

Zimbra is working properly, but synchronization with z-push is extremely...

4 Replies

16282 Views

Last post by BradC
Fri Mar 20, 2026 1:54 am
Speeding up Zimbra restarts

Last post by ghen « Thu Mar 19, 2026 9:22 pm

by ghen » Thu Mar 19, 2026 9:22 pm

Hi

You may have noticed that restarting Zimbra can take a long time... But there are quite a few corners we can cut.

Level 1: Instead of restarting...

0 Replies

32153 Views

Last post by ghen
Thu Mar 19, 2026 9:22 pm

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