Seems like a few people here have clearly never heard of Riseup: https://en.wikipedia.org/wiki/Riseup

It's a volunteer and donation run anarchist collective that has been around since 1999. They have fought a number of legal battles against governments to varying degrees of success.

The people involved have close ties to basically everyone involved in Tor and should be regarded with the same level of trust (what ever that means for you). There's also a lot of overlap with some core Debian contributors.

That said, I wouldn't use them for P2P other than occasional use. Or if you do, consider making a substantial monthly donation. It's a lot of resources to pull from a small organisation at the expense of people who need their services for political organizing, which is their primary focus.

What's the catch?

From Riseup: “Due to Thanksgiving and other deadlines, our lawyers were not available to advise us on what we can and cannot say,” the collective member told me. “So in the interest of adopting a precautionary principle, we couldn’t say anything. Now that we have talked to [counsel], we can clearly say that since our beginning, and as of this writing, riseup has not received a NSL, a FISA order/directive, or any other national security order/directive, foreign or domestic.”

Intercept article: "And yet, when I asked if riseup had received any request for user data since August 16, the collective did not comment. Clearly, something happened, but riseup isn’t able to talk about it publicly. The riseup collective is currently having internal discussions about when it will be able to update its warrant canary."

Very nice and seems fast

In the next weeks I'll go in an authoritarian country so I can test if it works good

Seems trustworthy even if free, but if using for p2p it's a bit abusing them, maybe donate a bit via liberapay

Don't trust "free" services.

How could one be invited to their email service? I don’t think I know anyone who’s in there.