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Tag: zimbra

May 24, 2025 Linux / Mailman

How to Add the “Set Flag Moderated” Module to Mailman

By default, we can set all members to “moderated” in Mailman via the Mailman Dashboard Admin. However, this configuration must

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May 23, 2025 Zimbra

Solved: Zimbra LDAP Error – Maximum Size Limit of 20971520 Bytes Exceeded

A few days ago, one of my client’s accounts had a problem. This account could not log in to webmail

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May 19, 2025 Zimbra

How to Fix Corrupt Attachments in Zimbra Exchange ActiveSync (EAS)

A few days ago, one of our clients faced an issue when using Zimbra Exchange ActiveSync (EAS) to sync emails

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May 15, 2025 Zimbra

Solved: Zimbra Amavis Service Not Running – How to Fix It

A few days ago, my datacenter had to perform emergency maintenance. As a result, my Zimbra had to be migrated

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May 4, 2025 Zimbra

How to Access Zimbra Chat (Zulip) from Desktop and Mobile Apps

After successfully installing the SSL certificate for Zimbra Chat, I can access it from both desktop and mobile apps. If

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May 3, 2025 Zimbra

How to Install and Configure SSL for Zimbra Chat (Zulip)

After installing and configuring Zimbra Chat in the previous article, I want to use it on desktop or mobile devices.

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April 30, 2025 Zimbra

How to Integrate Zulip (Zimbra Chat) with Zimbra Mail Server

Zimbra 10.1.7 introduces a chat feature that can be deployed on-premises. This article uses a Zimbra trial license. License Activation:

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April 28, 2025 Zimbra

Solved: “logswatch is not running” Error on Zimbra

I have several Zimbra Mail Servers running on Ubuntu, and I want to migrate them to Rocky Linux. I am

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April 24, 2025 Zimbra

How to Fix Missing MySQL Tables in Zimbra (gtid_slave_pos, innodb_index_stats)

After performing emergency maintenance, my Zimbra server experienced issues after migrated to a new host. The issue was related to

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April 19, 2025 Zimbra

How to Limit Email Attachment Size for Individual Users in Zimbra

Starting from Zimbra 10.1.6, Zimbra introduced the ability to limit attachment size per user. However, this feature is only available

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March 27, 2025 Linux

Blocking Access Based on GeoIP on RHEL 8, Rocky 8, Oracle Linux 8, and CentOS 8

In this guide, I am using Rocky Linux 8 with kernel 4.18 and xtables-addons 3.27. As an example, this applies

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December 2, 2023 Zimbra

How to Integrate Onlyoffice with Zimbra

When I installed Zimbra 10 NE, I forgot to add the onlyoffice repository. So, I can’t open or preview the

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October 10, 2023 Zimbra

Zimbra Tips: How to Restrict User Access to Webmail

In Zimbra 10, you can restrict users from accessing webmail. To do this, you can simply disable the Zimbra web

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October 7, 2023 Zimbra

Exchange ActiveSync for Zimbra Open Source Edition (Nginx Custom)

This article was inspired by Stefan Seidel’s writing here: https://www.stefanseidel.info/Z-Push_on_Zimbra_8 . On previous article about Exchange ActiveSync for Zimbra Open

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