How to avoid having your message to the list be ignored as spam
A common problem these days is people's email accounts being hacked, and spam and/or links to viruses being sent to everybody in their address book.
Including your mailing list.
Typically the hacker sends a message to dozens and scores of email addresses in the address book, in either the To or CC line.
Our system assumes that any email with more than 2 addresses in the To or CC fields is a piece of spam sent from a hacked account
And the message is silently eaten.
Just send your message to the mailing list first
Then send the message again to who ever else you want it to go to.