In evaluating mailing list managers, there are several criterion:

NationBuilder

MailChimp

Beehiv
    The Butch ware campaign uses and recommend Beehiiv.  

 


ListMonk

    ListMonk is the open source tool in this category.   Like Nationbuilde it lets you collect client information, and then filter on that information.  For example, one could ask for the zip code or state and county.   And then email lists can be created based on filtering that data.  And uses can be granted permssions to send emails only to people on a certain filtered list.   Listmonk lets you use any of the folloing buld email providers. Gmail Amazon SES Mailgun Mailjet Sendgrid Postmark Forward Email