https://bugs.winehq.org/show_bug.cgi?id=47465
--- Comment #7 from Zebediah Figura z.figura12@gmail.com --- (In reply to Todd Chester from comment #6)
(In reply to Zebediah Figura from comment #5)
They demand, in bold, a "work email", and reject this Google account, so I assume they are intentionally trying to reject free accounts, probably to avoid letting people use their software for free by creating throwaways. (I checked zoho.com, but it demands a phone number, which won't work for me.)
800-555-1212 ?
Sorry for the delay, but no, that provider does actually try to validate the number given.