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Comment by Nux | Hacker News Reader

Fun fact, Microsoft (Skype) will not accept user@vivaldi.net as a personal email address for new accounts.

It needs to be gmail/yahoo/outlook etc.

https://pbs.twimg.com/media/FETZDicXEAEjlSQ?format=jpg&name=...

I wouldn't be surprised if that because Vivaldi had/has a corporate MS service using the domain in some way. E.g. if I test with one of my personal domains with MX records/email configured it continues just fine, if I test with one of my personal domains without email configure it continues just fine, if I try to create a personal account using my work's domain (tied to O365) it blocks it.

So it's not that you can only register gmail/yahoo/etc it seems that the domain can't already be registered for non personal use at MS. Maybe there are other criteria as well (perhaps a way to explicitly exclude your domain if you don't want people registering it for example) but it's a lot more open than "only these services allowed".

Ok, good.. Then vivaldi.net is specifically blacklisted then.

I checked and vivaldi.net is their community, everyone can sign up for email, whereas vivaldi.com is their "commercial" email domain.

Both hosted in Iceland with valid MX that has got nothing to do with o365...

Doesn't necessarily have to be that the domain is tied to specifically O365 like my work just that it is registered for non-personal use with Microsoft's cloud e.g. Azure AD. Or possibly still other factors unknown but yeah the main thing is it's blocked for a reason not because it was missing from a whitelist.

This seems to be a new trend - even IBM doesn't allow you to create accounts with non-American / non-BigTech email IDs (for their free cloud offering). Makes you wonder what is going on behind the scenes.

The Linux foundation is in the same league: They are sending me spam^Hmarketing communication, but when I want to unsubscribe they tell me that I have an invalid email. The provider of that address ended up on some self-declared blacklist years ago for some time, which might explain part of it. But not stopping to sending email to those you don't want to deal with is nonsense. Not accepting unsubscribes probably illegal in many countries.

What's going on behind the scenes is that very few people don't use an email address with one of a handful of TLDs, and that restricting signups to a known-good list solves some support and a lot of abuse problems.

Not saying it justifies it, but that's for-sure one reason places do that.

That is complete garbage. Lame Microsoft

I don’t think it’s anything against competition, just that they don’t have vivaldi.net on their public email allowlist. They want enterprise customers to pay for enterprise Microsoft services.

IMHO it's a dumb policy and against competition. This is discriminatory and abusive.

Pretty sure there are thousands or tens of thousands of email domains out there that are personal. Nobody can track them all. How many of you guys don't have your own personal domains?

Pretty sure that's no longer the case or used to not be the case as I have a Microsoft account I use on Skype among other MS services that is firstname@lastname.fr

They also won't take hey.com

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