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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
by Nux 5y ago
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...
- zamadatix 5y agoDoesn'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.