Is the description of the $AllowedSender correct?

[naccome]

Hello,

I have a question regarding the $AllowedSender description below.

Hostnames, with and without wildcards, may also be provided. If so, the result of revers DNS resolution is used for filtering.

If we say "reverse DNS resolution", it will extract domain name from IP address.
But in this situation, we have given a hostname so I think the normal DNS resolution (extract IP address from domain name, DNS lookup) looks correct.

Can you please help to confirm?

Reference :
https://github.com/rsyslog/rsyslog-doc/blob/master/source/configuration/input_directives/rsconf1_allowedsender.rst