Zimbra: How to setup SplitDNS

Here’s a short how to which explain how to setup SplitDNS on Zimbra Open Source Edition version 8.8.11.

Why ?

Fix email stuck in queue which are addressed to root@domain.com

How ?

Disable and uninstall Zimbra DNS cache

As zimbra user, stop and disable Zimbra DNS cache service

As root, uninstall Zimbra DNS cache service

As zimbra user, restart all Zimbra service

Install and configure dnsmasq

Use instructions provided in Zimbra Tech Center

https://wiki.zimbra.com/wiki/Split_DNS#Configuring_dnsmasq_on_the_Zimbra_Server

Source

https://forums.zimbra.org/viewtopic.php?f=13&t=38705&start=10#p273129

https://wiki.zimbra.com/wiki/Split_DNS#Configuring_dnsmasq_on_the_Zimbra_Server

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