How to resolve blocks by Apple Mail (local policy).

Apple Mail domains

icloud.com and me.com are domain names owned and operated by Apple.

Blocked email message

Sometimes, Apple Mail blocks your Mailing List email with this error message:

550 5.7.1 [CS01] Message rejected due to local policy.
Please visit
https://support.apple.com/en-us/HT204137

How do I resolve this issue?

Add a Rule in Mail > Preferences to allow/whitelist mail from mail-list.com.