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New December 2025 Zimbra Hotfix Attributes: zimbraMtaSmtpdPriorityFromSender and zimbraMtaSmtpdPriorityToSender

Last post by L. Mark Stone « Tue Dec 16, 2025 7:29 pm

by L. Mark Stone » Tue Dec 16, 2025 7:29 pm

According to Adrian Gibanel on today's Zeta Alliance call, Zimbra are about to release a Hotfix to introduce two new Global Config attributes:...

0 Replies

89 Views

Last post by L. Mark Stone
Tue Dec 16, 2025 7:29 pm
Approving/Quarantining new ActiveSync devices in V10?

Last post by peter-alexander « Sun Dec 14, 2025 10:27 pm

by peter-alexander » Sun Dec 14, 2025 10:27 pm

Hi! With the loss of the NG modules in ZCS v10+, is it possible to somewhat replicate the zxsuite abq mechanism? I'd like to be able to have new...

0 Replies

224 Views

Last post by peter-alexander
Sun Dec 14, 2025 10:27 pm
ZBUG-5276: /opt/zimbra/conf/common-passwords.txt Missing On Non-Mailbox Servers

Last post by ghen « Sat Dec 13, 2025 3:49 pm
Replies: 1
by L. Mark Stone » Sat Dec 13, 2025 10:51 am

A minor bug...

In a multi-server environment, the Zimbra installer fails to create the file /opt/zimbra/conf/common-passwords.txt on all except...

1 Replies

281 Views

Last post by ghen
Sat Dec 13, 2025 3:49 pm
Chat

Last post by Klug « Sat Dec 13, 2025 8:50 am
Replies: 2
by Klug » Thu Nov 20, 2025 8:42 am

Hello.

Just wondering...

What are you using as chat/visio tool (self hosted) and how is it integrated in your Zimbra?
I'm not personaly a fan of...

2 Replies

1092 Views

Last post by Klug
Sat Dec 13, 2025 8:50 am
How to archive large mailboxes?

Last post by dominix « Fri Dec 12, 2025 10:02 pm
Replies: 3
by brunob » Mon Oct 20, 2025 11:01 am

Hi @all,

I am trying archive a large mailbox (~30 GB) with:
zmmailbox -z -m $USER getRestURL //?fmt=tgz > /opt/zimbra/backup-archived/$USER.tgz...

3 Replies

1379 Views

Last post by dominix
Fri Dec 12, 2025 10:02 pm
Autocomplete behaviour change between 9.0 and 10.1

Last post by gabrieles « Fri Nov 28, 2025 1:28 pm
Replies: 24
by Klug » Fri Jun 13, 2025 1:02 pm
1

2

3
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...
24 Replies

22545 Views

Last post by gabrieles
Fri Nov 28, 2025 1:28 pm
Keep switching back to classic client – what features are missing for the final migration to modern web client?

Last post by Klug « Thu Nov 20, 2025 8:35 am
Replies: 1
by oetiker » Thu Nov 20, 2025 8:08 am

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...

1 Replies

533 Views

Last post by Klug
Thu Nov 20, 2025 8:35 am
HTML emails not displaying in Zimbra 10.1.14_GA_4838 - blank page issue

Last post by oetiker « Wed Nov 19, 2025 6:46 pm
Replies: 2
by oetiker » Wed Nov 19, 2025 6:09 pm

Hi,

Running Zimbra 10.1.14_GA_4838 and seeing increased HTML email rendering failures in the webclient - emails display as blank pages. Issue became...

2 Replies

676 Views

Last post by oetiker
Wed Nov 19, 2025 6:46 pm
Zimbra 10.1.9 errors in mailbox.log: mailbox - error copying notifications; will notify with live set

Last post by scantec « Tue Nov 18, 2025 3:53 pm
Replies: 7
by thomas.klaube » Mon Jul 28, 2025 12:16 pm

Hi all,

on some of our Zimbra Servers we see error messages like these:

2025-07-28 00:11:58,792 WARN mailbox - error copying notifications; will...

7 Replies

9706 Views

Last post by scantec
Tue Nov 18, 2025 3:53 pm
How to change the default SMTP port (25)

Last post by liverpoolfcfan « Wed Nov 12, 2025 11:48 am
Replies: 2
by arifjsn » Wed Nov 12, 2025 5:40 am

How to change the default SMTP port (25) because port 25 is blocked by Yahoo, I want to use port 465 or 587.

I am using Zimbra 8.8.15_GA_4717.FOSS...

2 Replies

1089 Views

Last post by liverpoolfcfan
Wed Nov 12, 2025 11:48 am
Zimbra web sending email error

Last post by Blisk « Fri Nov 07, 2025 2:11 pm
Replies: 10
by Blisk » Thu Nov 06, 2025 9:12 pm
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2
I have Release 10.0.8_GA_0224.RHEL8_64_20240627073153 RHEL8_64 FOSS edition.
on Rocky Linux release 8.10 (Green Obsidian)

When ever I try to send...
10 Replies

1764 Views

Last post by Blisk
Fri Nov 07, 2025 2:11 pm
ClamAV update 1.0.8 -> 1.0.9

Last post by halfgaar « Thu Nov 06, 2025 8:10 pm
Replies: 5
by oetiker » Mon Oct 20, 2025 3:17 pm

Hi

Zimbra 10 runs still ClamAV 1.0.8 (ZBUG-5100, Clam-av has critical vulnerabilities)

zimbra-clamav 1.0.8-1zimbra8.8b4.22.04 ClamAV Binaries...

5 Replies

1963 Views

Last post by halfgaar
Thu Nov 06, 2025 8:10 pm
A single user's inbox will not preload beyond 400 messages.

Last post by yellowhousejake « Tue Nov 04, 2025 12:35 pm
Replies: 8
by yellowhousejake » Wed Sep 17, 2025 12:32 pm

I have one user who, when scrolling through their inbox, cannot load more than 400 messages before it will not load more messages.

- User logs in.
-...

8 Replies

3470 Views

Last post by yellowhousejake
Tue Nov 04, 2025 12:35 pm
Hardware Requirements for 300 Mailboxes (100GB Each)

Last post by rojoblandino « Wed Oct 29, 2025 7:02 pm
Replies: 2
by DMSE-DESK » Wed Aug 06, 2025 11:36 am

Hi Team,

Could you please advise on how to calculate the required hardware specifications for hosting 300 mailboxes, each with a size of 100 GB?...

2 Replies

10946 Views

Last post by rojoblandino
Wed Oct 29, 2025 7:02 pm
How does zmprov rd OLDDOMAIN NEWDOMAIN affect GAL

Last post by yellowhousejake « Wed Oct 29, 2025 1:55 pm
Replies: 4
by yellowhousejake » Mon Oct 27, 2025 1:10 pm

We are rapidly approaching the day when I move our domain from a .org to a .gov.

In reviewing the road map I have laid out and listening to users...

4 Replies

1175 Views

Last post by yellowhousejake
Wed Oct 29, 2025 1:55 pm
I can't send emails to Gmail, Outlook, Yahoo but I can receive

Last post by rojoblandino « Tue Oct 28, 2025 7:00 pm
Replies: 7
by jreyes256 » Thu Mar 24, 2022 12:46 am

Greetings.
I have the problem that I cannot send mail to those domains mentioned, my version of zimbra is Release...

7 Replies

45759 Views

Last post by rojoblandino
Tue Oct 28, 2025 7:00 pm
After last upgrade suddenly some log files grow a lot

Last post by rojoblandino « Tue Oct 28, 2025 6:44 pm
Replies: 2
by ryleybob » Tue Sep 16, 2025 3:09 am

mailbox log was 13 G and everyday a trace log is about 3 G

2 Replies

2986 Views

Last post by rojoblandino
Tue Oct 28, 2025 6:44 pm
How do I calculate the number of emails a user sends?

Last post by rojoblandino « Tue Oct 28, 2025 5:44 pm
Replies: 12
by mr00t » Wed Nov 13, 2019 8:57 am
1

2
hello everyone,

when I examined the zimbra.log file, I noticed that a user sent 75,000 emails. cat /var/log/zimbra.log | grep -i sasl_username |...
12 Replies

19844 Views

Last post by rojoblandino
Tue Oct 28, 2025 5:44 pm
urgent help needed Zimbraserver crashes every 30 minutes and i can't find the cause

Last post by rojoblandino « Tue Oct 28, 2025 4:54 pm
Replies: 2
by harry@ice.be » Mon Oct 13, 2025 8:26 am

hi
my zimbra server crashes every 30 minutes -see sql log
In my mailbox log i always see this happening and the sql server crashed
2025-10-13...

2 Replies

1295 Views

Last post by rojoblandino
Tue Oct 28, 2025 4:54 pm
iOS 18 doesn't save sent mail on server

Last post by rojoblandino « Tue Oct 28, 2025 3:23 pm
Replies: 5
by jjakob » Fri Oct 04, 2024 5:14 pm

Hi. I am trying to find what could be causing this issue that one of our clients is reporting has started happening a couple days ago. He can send...

5 Replies

4082 Views

Last post by rojoblandino
Tue Oct 28, 2025 3:23 pm
Issue with Zimbra to New Mail Server Migration Using imapsync and account delegation

Last post by Klug « Mon Oct 27, 2025 9:21 am
Replies: 1
by zainalara » Mon Oct 27, 2025 3:23 am

I'm trying to migrate a mailbox from a Zimbra server to another mail server. I've created a technical user tech-migration@example.com and granted it...

1 Replies

834 Views

Last post by Klug
Mon Oct 27, 2025 9:21 am
I have a problem with imap NIO:zimbraImapMaxConsecutiveError exceeded 5

Last post by mocha « Fri Oct 24, 2025 8:03 pm
Replies: 5
by tomeks11 » Fri Jul 01, 2022 11:15 am

I often have a problem with saving a sent message to the sent foder. Then I have a lot of messages in my logs:
2022-07-01 11:47:38,945 INFO imap -...

5 Replies

5441 Views

Last post by mocha
Fri Oct 24, 2025 8:03 pm
[CRITICAL] Zimbra 10.1.10 - Authentication anomaly

Last post by adrian.gibanel.btactic « Thu Oct 16, 2025 10:48 am
Replies: 2
by zimbraadmin789789 » Tue Oct 14, 2025 12:58 pm

Hi, after update from Zimbra OSE 10.0.13 to 10.1.10 there is a problem with imaps authentication.

I'll try to explain:
- I have 5 store server...

2 Replies

1656 Views

Last post by adrian.gibanel.btactic
Thu Oct 16, 2025 10:48 am
Mailbox connects to MTA using TLS or STARTTLS

Last post by yeak « Wed Oct 15, 2025 5:02 am

by yeak » Wed Oct 15, 2025 5:02 am

I am wondering how to make Zimbra Mailboxd to connect to Zimbra MTA using TLS (465). Currently this zimbraSmtpHostname is set to localhost:25, if it...

0 Replies

1979 Views

Last post by yeak
Wed Oct 15, 2025 5:02 am
Request for Advice - OS upgrade/migration

Last post by Klug « Sat Oct 11, 2025 12:34 pm
Replies: 18
by DennisT » Wed Jun 30, 2021 3:40 pm
1

2
Hi,
I have a single server ZCS NE install (8.8.15) on a Ubuntu 14 VM. Zimbra is dropping support for v14 so I need to move to a newer OS version....
18 Replies

29514 Views

Last post by Klug
Sat Oct 11, 2025 12:34 pm

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