Mailing list hosting for free software

[Yosef Meller]

Hag Sameach.

I'm about to release some code of mine which I would like to turn into 
an active project, so I'm setting it up for community work. The code is 
hosted at GitHub, and for the website I use the GitHub Pages feature. 
What I still need to set up before announcing the project is a mailing list.

I can use Google Groups, of course, but I'm not sure it offers 
everything that Mailman offers. On the other hand, I don't have a budget 
for paid hosting. So I thought I's ask here: what would you recommend 
for mailing list hosting?

Yours,
Yosef.