DMARC, SPF, DKIM should always be set up to avoid spoofing, security issues and whatnot. Even the article mentions that there is a quick “fix” to this situation with Outlook (insert obligatory fuck Microsoft here anyways), this shouldn’t be ignored just because.

[–] ikidd@lemmy.dbzer0.com 11 points 19 hours ago* (last edited 19 hours ago)

They're just bouncing mails for the hell of it now. I've had all my DNS ducks in a row for years, nobody bounces mail on me except now Outlook has started. And when I send an email that goes to a human for review, that person has written back saying it all looks in order, but can't do anything about it.

I think they've just gone to whitelisting providers that are big enough that the stink they'd raise would be more trouble than what I can make for them.

Fuck Microsoft.