How to resolve blocks by Apple Mail (local policy).
Apple Mail domains
@icloud.com, @me.com and @mac.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 email received from mail-list.com.

Visit our website to learn more and start a FREE trial!