Outlook.com Trips Over Google's Spam Blocking Rules
The Register, Wednesday, April 3rd, 2024
Microsoft has a workaround but it's not a great look
Emails from users with Outlook.com country domains may not be reaching Gmail addresses but fear not - Microsoft has a workaround.
The problem, where users send email to a Gmail account and receive a terse response from Google that their message was blocked, has been acknowledged by Microsoft and a temporary solution issued:
"Add an Outlook.com alias to your account and send email to Gmail users using that alias."