That Truth Social is seeing so much activity that its e-mail use is registered as an attack against Fastmail's ISP?

That someone is attacking Truth Social by attacking their e-mail provider's ISP?

Honestly this is the first time I've even heard of Truth Social and without context and with the utter lack of information provided by their landing page, it looks like yet another Gab-like. I don't see how someone would think they're worth attacking to the point where their e-mail provider's ISP is a useful vector.