Yep, on the rare occasion I deal with someone who uses Microsoft for email, I give them a heads-up that they probably miss an email every now and then. I rememb

Yep, on the rare occasion I deal with someone who uses Microsoft for email, I give them a heads-up that they probably miss an email every now and then. I remember my last employer's mails often didn't reach them, and at some point they added a big warning to their sign up page when you used one of the Microsoft domains for your email.