Email from secondary domains being routed to junk in Outlook / Office 365 / Hotmail

[krachtwerk]

@Woody

Which leads me to believe this has more to do with the actual content of the mail (e.g. a link in it that is always there) than with the fact that a MIAB server sent it.

I’m experiencing the same thing as @amarsaudon, even when the email contains only plain ASCII text without any links.