[gue5t]

Hardly reasonable. Domains are (in reality, if not in legislative fantasy) property of ICANN and merely rented by everyone else.

[CoryG89]

So? If we qualify it to preventing unauthorized use of one of their rented domains does that make it any less reasonable?

[caf]

The conceit here is that you must be "authorized" in order to write an app that puts the domain in question into the SNI field of a TLS connection that it initiates. I don't think that's reasonable.

It is of course up to Amazon what their servers then do when presented with such a connection, in particular whether they ensure the Host: header later presented matches the SNI data.

[bdcravens]

So have they obtained the permission of ICANN? I rent my home, but I still call the police if there's a trespasser.