So groups.io allows you to add additional email aliases to your account allowing any of them to post.
Yahoo did this as well, but allowed you to associate different aliases for delivery from different groups.
Apparently groups.io does not.
Where do I put feature requests for this (granted Yahoo's collapse probably puts that into late 2020 or 2021).
Note that using email filters does not work when you want to direct emails to different actual email accounts, e.g. to work, to home private, to gmail.
In the meantime, using multiple accounts, one per destination mailbox, subscribed as necessary, perhaps with one account for Admin of all groups, with all but moderator messages turned off for that account, is probably the best solution.? Makes for lots more groups.io accounts however, so maybe implementing the group.sendto.alias functionality is more desirable for the groups.io maintainers.
Regards,
Steven Deller