Such b.s.
And they know it's b.s.
But what about your Expensive PC tower / $$$ smartphone's Safety and Security ? Or your laptop ??
Do you use McAfee?
Do you use Norton?
I just re-logged my new ZTE AXON 7 by doing a Clear/"factory reset" 4 times !!
My dear old Mom allowed india HP csr access to her new defective inkjet printer, and computer, altho she felt uneasy about it.
It took a Techie 40hrs or 5 full days to get that Bad Bug out of her Big Custom built PC.
HP in Palo Alto denied "any responsibility."
So, does MSN like an insecure inefficient out of date and mediocre internet experience, and that Mess is why they don't as a rule show the Sender's Full Email Address, all the time ?