Just a little storytime about Vinted.
I just wanted to register on Vinted to sell some second-hand stuff, because I haven’t had much success elsewhere. I would have never imaged that they will reject my addy.io alias. After a couple of annoying e-mails detailing how to register an account, I was left with the answer on the screenshot after trying to get an explanation why the domain I am paying for (not some random free gmail address) is not worthy of their services…
My guess is that the agents answering are also not shared any information why some domains are blocked. I would also think that they have no idea what a domain is. Not the chatbots that answered the first couple of mails. :D