What were you trying to do that didn't work?

On a system without bind-utils installed, postfix reverse lookup of the IP isn't working

What is the impact of this issue to you?

None, lost a few minutes troubleshooting that

Please provide the package NVR for which the bug is seen:

Probably all of them

How reproducible is this bug?:

Install postfix on a system where bind-utils is not installed and enable reject_unknown_reverse_client_hostname

Steps to reproduce

1. Install postfix on a system where bind-utils is not installed and enable reject_unknown_reverse_client_hostname
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Expected results

If it's needed by postfix when reject_unknown_reverse_client_hostname is enabled, it should be configured .  If it's documented I missed it and I apologize for this issue

Actual results

Postfix should have all dependencies installed