Filtering out mailing lists on the server Apple Mail is good at filtering mailing-list email into my junk folder, and my iPhone is good at recognizing email from a list.  I'd like to move this capability to some server-side filter rules and unburden my phone. Unfortunately I don't know what it is that Apple Mail looks at to make its decision.

Can somebody please explain, in simple terms, what to look for?  I've tried 'from address contains' and 'subject contains' and 'mailing list contains' without much luck. Truthfully, I'm not sure what to put in 'mailing list contains' except that my email address isn't it. I am aware that I'll have to accept the lists I want before purging the ones I don't.

Looking for any help or advice on getting this set up.  My email server is Cox.
To implement server side rules, your server must support it.  

There’s nothing in Apple Mail that can enable something on the server if the server doesn’t support that feature. 

I searched Cox’s Support site for “server side rules” and found nothing.  Additionally, I found this message


  Cox Email is a free service that was included with all Cox High Speed Internet packages. As of August 15, 2019, Cox Email is no longer available to new users.


This pretty much means that while the service isn’t discontinued yet, there’s no further development.  So, if you’d like server side rules, you will need to find another provider.  I personally like Outlook.com as you get the Exchange like server features along with a OneDrive account and free online versions Office.