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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How to Block Access Based on GeoIP on CentOS 6
If you are using CentOS 7, you can find similar guidance here: How to Block Access Based on GeoIP on
Continue readingHow To Block Macros on Zimbra
Below is step by step how to block macros in Microsoft Office Documents that sent as attachments in Zimbra su
Continue readingHow to Block Access Based on GeoIP on CentOS 7
If you are using Ubuntu, you can find similar guidance here: How to Block Access Based on GeoIP on Ubuntu.
Continue readingHow to Block Access Based on GeoIP on Ubuntu
I usually use this method to block access to my Zimbra server from international IP/outside. Only IP based on my
Continue readingZimbra Tips : How To Block Email From and Return-Path did not Match
Recently, my client got spam e-mail originating from their domain. Although, I have improved by implementing the sasl / sender
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