require_matching_ehlo, dnsbl: Exclude 127.0.0.1/24 clients from the check

この issue には説明がありません。

Start by locating the require_matching_ehlo and dnsbl checks in the maddy source and read how client addresses are passed to them. Done means clients from 127.0.0.1/24 are excluded from both checks, with relevant tests updated or added if those checks have test coverage.

索引モデルが issue の本文から書いたものです。