I'm looking for a mailing list management system. Currently I only have one mailing list with fewer than 1,000 subscribers and fewer than 100 mails/day, so the performance doesn't matter much (at least for now).
I currently use Google Groups; however, administration tasks of a Google group depend heavily on its web portal, so it's quite inconvenient when I use cellphone or public computer or anything except my own computer.
I'm planning to build my own mailing list on my own server. I wish to find a mailing list management system with a mail-based administration system. For instance, let firstname.lastname@example.org be the address of the mailing list. I wish I would be able to send something "query subscribers" to email@example.com obtain a list of subscribers.
Is there any? Or can I achieve this with GNU mailman?
Update: It's not an announcement-only mailing list. It's a discussion mailing list.