This is just to provide you with a little insight. Faucets are an important part of earning cryptocurrency, just like mining. It is important for all faucets to be decentralized as well. This means there can not be any rule of which email service you use. This is up to the individual freedom of the person, just like cryptocurrency and Bitcoin.
It is important you understand this in order not to be subjected to criminal intentions, after all birds of a feather flock together. Criminals always demand the use of criminal organizations, do they not?
The entire point of cryptocurrency is to be completely free with earning and using the currency. The heart of this matter is decentralization. Now another problem is the ongoing attempts by faucet owners to centralize under the same criminal cabal.
Be aware that any crypto faucets, such as aruble.net, that only allow the criminal emails of Google, And Yahoo, Microsoft hotmail are aiding and completely complacent with these criminals that have interfered with an election and caused criminal harm to the population by censoring the truth about the alleged vax.
Avoid any and all faucets that do not allow for decentralization of email as well as the decentralization of freedom.