i've been digging around and looking at various plugins, but the majority of WP mailing plugins are one way mailing lists. I would like to create a mailing group, like google groups/yahoo groups/wiggio or old-school listserv where I can set up 1 email address and any of my site's users can email the whole list, but emails from outside/non-user addresses are rejected.
is there a way to integrate listserv capabilities with my WordPress users list? i would like the user list to be linked so that i can use one of the membership plugins to track/manage who has paid their membership dues.
mailpress and email users can be rigged (via modifying capabilities) to allow users to send emails, but i don't want them to have to log in. my members aren't tech savvy and i don't want to try teaching them how to do things this way. but i also don't want to have to manage 2 separate lists, ie: my google groups list and my WP membership.
anybody have any ideas?