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Duplicate email uploads exceeding users quota - ZBUG-4613

Last post by ghen « Sat Jan 17, 2026 5:10 pm
Replies: 7
by Matt » Wed Jan 08, 2025 10:29 am

Hi all,

I have a support ticket open for this (case 01747918) which resulted in a bug being opened (ZBUG-4613). I'm wondering if anyone else is...

7 Replies

2691 Views

Last post by ghen
Sat Jan 17, 2026 5:10 pm
Autocomplete behaviour change between 9.0 and 10.1

Last post by 7224jobe « Fri Jan 16, 2026 1:45 pm
Replies: 26
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...
26 Replies

26244 Views

Last post by 7224jobe
Fri Jan 16, 2026 1:45 pm
Bug Report: Malformed Return-Path Concatenation in Zimbra MTA for Multi-Recipient Messages from Exchange Online

Last post by lovelord « Fri Jan 16, 2026 10:53 am

by lovelord » Fri Jan 16, 2026 10:53 am

Hi Administrators, BUGZILLA for Daffodil seems to be actually dead, I don't know if this is the right place to report this bug, but there's no other...

0 Replies

183 Views

Last post by lovelord
Fri Jan 16, 2026 10:53 am
We're getting hit with this one : CVE-2025-68645

Last post by ghen « Thu Jan 15, 2026 12:02 pm
Replies: 7
by BradC » Fri Jan 02, 2026 8:39 am

It's exposing some internal server names and ip addresses, admin port numbers and a few other bits and pieces. Easy enough to run against your own...

7 Replies

1431 Views

Last post by ghen
Thu Jan 15, 2026 12:02 pm
ActiveSync and shared Folders with ZCS 10.0 and 10.1

Last post by frompani « Thu Jan 15, 2026 9:26 am
Replies: 5
by thomas.klaube » Thu Dec 05, 2024 4:00 pm

Hi all,

what are your experiences with ZCS 10.0.x and 10.1.x in terms of ActiveSync and shared mailfolders? In the recent months we upgraded most of...

5 Replies

9719 Views

Last post by frompani
Thu Jan 15, 2026 9:26 am
Inconsistent SMTP AUTH enforcement: Outlook vs Thunderbird

Last post by yeak « Thu Jan 15, 2026 8:56 am
Replies: 12
by asa » Tue Dec 30, 2025 8:40 am
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2
We are observing a serious inconsistency in how Zimbra enforces the authenticated sender depending on the mail client.

When a Zimbra mailbox is...
12 Replies

1572 Views

Last post by yeak
Thu Jan 15, 2026 8:56 am
Network error after upgrade to 8.8.15

Last post by stefan « Tue Jan 13, 2026 11:51 am
Replies: 2
by dimon » Tue Mar 24, 2020 1:52 pm

Hello, there was a problem on only one box, when you go to the Tasks tab, the message Network error appears, if you switch to HTML mode there is no...

2 Replies

1588 Views

Last post by stefan
Tue Jan 13, 2026 11:51 am
error when force users to change password in zimbra 10

Last post by Klug « Mon Jan 12, 2026 9:37 am
Replies: 24
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...
24 Replies

14514 Views

Last post by Klug
Mon Jan 12, 2026 9:37 am
"View mail" with modern UI

Last post by Klug « Fri Jan 09, 2026 5:15 pm
Replies: 1
by 7224jobe » Fri Jan 09, 2026 4:35 pm

Hi everybody, if an user has modern UI as default web client, when I try to use View mail function from admin web interface I receive an error from...

1 Replies

222 Views

Last post by Klug
Fri Jan 09, 2026 5:15 pm
Constant Zimbra phishing attacks not caught my spamassassin/amavis/rspamd/etc

Last post by jered « Wed Jan 07, 2026 3:34 pm

by jered » Wed Jan 07, 2026 3:34 pm

It seems that there's a list of sites running ZCS (presumably by scanning for signatures) that I'm on, and I've been seeing huge volumes of phishing...

0 Replies

414 Views

Last post by jered
Wed Jan 07, 2026 3:34 pm
Thank you

Last post by liverpoolfcfan « Mon Jan 05, 2026 3:11 pm
Replies: 1
by yellowhousejake » Mon Jan 05, 2026 1:36 pm

We have successfully moved our domain from .ORG to .GOV and moved our server from in house to a hosted solution. That was the last item to be handled...

1 Replies

434 Views

Last post by liverpoolfcfan
Mon Jan 05, 2026 3:11 pm
keycloak saml auth or oauth

Last post by adrian.gibanel.btactic « Mon Dec 29, 2025 12:37 pm
Replies: 4
by zgokan » Thu Dec 18, 2025 12:50 pm

Hello

Is there OpenID or SAML authentication support in the FOSS version?

4 Replies

934 Views

Last post by adrian.gibanel.btactic
Mon Dec 29, 2025 12:37 pm
Enormous IMAP traffic from Outlook clients to ZCS server

Last post by ghen « Thu Dec 25, 2025 11:42 pm
Replies: 6
by Labsy » Sun Mar 20, 2022 8:11 pm

Hi,

from time to time some newer Outlook client (especially Outlook 2021) begins generating enormous traffic against my ZCS server via IMAP...

6 Replies

23058 Views

Last post by ghen
Thu Dec 25, 2025 11:42 pm
ZBUG-5298 - Modern UI Email Templates Zimlet Fails to Attach Attachments In A Template

Last post by L. Mark Stone « Tue Dec 23, 2025 6:46 pm

by L. Mark Stone » Tue Dec 23, 2025 6:46 pm

I've been trying to use the Modern UI more often, and I and my customers are heavy users of the Email Templates zimlets.

Recently, I discovered that...

0 Replies

796 Views

Last post by L. Mark Stone
Tue Dec 23, 2025 6:46 pm
Keep switching back to classic client – what features are missing for the final migration to modern web client?

Last post by BradC « Mon Dec 22, 2025 5:18 am
Replies: 4
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...

4 Replies

1540 Views

Last post by BradC
Mon Dec 22, 2025 5:18 am
@SYNACOR - FOSS repos are broken for 10.1

Last post by adrian.gibanel.btactic « Thu Dec 18, 2025 5:54 pm
Replies: 2
by liverpoolfcfan » Thu Dec 18, 2025 3:53 pm

@Synacor

The FOSS repos are completely broken for 10.1 (and probably 10.0 releases.) There is a 10.1.14 checkin to the zm-build repo but nothing...

2 Replies

639 Views

Last post by adrian.gibanel.btactic
Thu Dec 18, 2025 5:54 pm
New December 2025 Zimbra Hotfix Attributes: zimbraMtaSmtpdPriorityFromSender and zimbraMtaSmtpdPriorityToRecipient

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

1033 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

922 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

696 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

1635 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

1891 Views

Last post by dominix
Fri Dec 12, 2025 10:02 pm
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

1030 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

10663 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

1622 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
1

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

2389 Views

Last post by Blisk
Fri Nov 07, 2025 2:11 pm

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