[Mailman-Users] how to subscribe users of one list to another when they post

[Danil Smirnov]

Hi Mark, Barry and others!

Could you please advice whether it's possible to automate
situation when users of particular list post to some sibling list
which they are not member of:
- to invite them
- to subscribe them silently
- to subscribe them with moderator approve

Is it possible with 2.x/3.x version?

Danil