12b645e574c7672e8f99b874fe23062d8c101333
The Zabbix server resolves *localhost* to `::1`, but Postfix resolves it to `127.0.0.1`. This causes Postfix to reject incoming mail from Zabbix with "Relay access denied." Explicitly setting the `mynetworks` setting to include both the IPv4 and IPv6 loopback addresses will ensure that no mail is rejected from local processes, regardless of how name resolution happens.
Description
Ansible configuration policy for the private network/home lab of Dustin C. Hatch
http://dustin.hatch.name/
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