I work for inbox.eu It is based in European Union and has 20 years experience as e-mail provider We do not require phone number for premium users. If You are u

I work for inbox.eu It is based in European Union and has 20 years experience as e-mail provider We do not require phone number for premium users. If You are using free trial version You still need to verify phone number to test e-mail sending (receiving works). It is needed to avoid spammers who signup for free to send spam.