Zimbra-OSE

Zimbra OSE

Latest Articles

Zimbra CLI Commands: Zmprov

This article is part of a series of guides on how to use the Command-Line utility in Zimbra. We are going to see how to manage the most common administrative...
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How to Change Password in Zimbra

If you ever need to change your password for security reasons, you can do that from the Zimbra Web Client as long as you are logged in and have access...
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How to Filter Email Messages in Zimbra

Email filters help you to better manage your emails. For example, you can find all emails you receive about a certain project in the relevant folder simply by creating a...
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How to Share Your Calendars in Zimbra

Sharing calendars can be a very effective tool to improve your work efficiency. This feature enables you to easily see when your teammates are free so that you can create...
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Sizing Zimbra Infrastructures — Part 1

When speaking to Customers and other SysAdmins, one of the “TopTen most frequent questions” is, “How to correctly size my Zimbra infrastructure?”. As you can imagine, the answer is not...
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Zimbra User Guide: How to set up your account

Zimbra Web Client is a complete messaging and collaboration application that offers reliable email, address books, calendar, task lists and web document creation capabilities. That sounds great ! But now...
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How To Setup SNI In Zimbra OSE?

In this article, you will learn about the SNI setup in Zimbra. It would be important for you to set up Zimbra SNI as you can serve your users not...
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What is SNI in Zimbra OSE?

In this article, you will learn about SNI and Zimbra SNI. It would be important for you to set up Zimbra SNI as you can serve your users not being...
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How to Install Zextras Theme for Zimbra

Zextras theme is a modern-looking theme for Zimbra compatible with Zimbra 8.6 and above including Zimbra 9. It does not change any classic UI element or functionality, so you don’t...
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What is Zimbra log4j?

log4j is a logging framework written in Java, it is also used by Zimbra as the log manager for java processes. In this article, we will take a look at...
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Zimbra Upgrade on Ubuntu LTS

This guide is divided into two parts Single server upgradeMulti-server upgrade Zimbra Postscreen is enabled by default on Zimbra 8.7 and above. The only thing you need to do is...
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Postscreen Attributes Explained

Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by keeping spambots away and making more SMTP processes available for legitimate clients. Zimbra...
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How To Use Zimbra Postscreen?

In this article, you will learn about using and configuring Zimbra Postscreen. Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by keeping...
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What Is Zimbra Postscreen?

In this article, you will learn about Zimbra Postscreen and how it works. Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by...
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How to Verify Your rDNS Record

rDNS Record Verification Assuming you have already created your rDNS record, added it to your DNS, and want to check your rDNS configuration. The rDNS record is stored in DNS...
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How to Verify Your DMARC Record

DMARC Record Verification Assuming you have already created your DMARC rule, added it to your DNS, and want to check your SPF configuration. The DMARC record is stored in DNS...
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How to Verify Your SPF Record

SPF Record Verification Assuming you have already created your SPF rule, added it to your DNS, and want to check your SPF configuration. The SPF record is stored in DNS...
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How to Verify Your DKIM Signature

DKIM Signature Verification for Outgoing Emails Assuming you have already created your DKIM data, added them to your DNS, and want to verify your DKIM configuration for signing outgoing emails....
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