Configuring preferences and options in Outlook.com
Important update from Microsoft support:
"Thank you for your response. I understand how frustrating this must be for you but unfortunately there is no ETA as to when the issue will be fixed. We will let you know once a fix is released."
It is hard to understand how a massive corporation like Microsoft, with its huge IT resources, cannot fix this bug, which they they themselves introduced.
It makes me anxious about the future of Outlook.com as a viable free email service,
I see possible solutions for changing the default FROM: email address have been posted (though not referenced by Microsoft support).
I have not tried these yet.
Also, several posts raised the possibility of infringement of the Data Protection Act.
I am not an expert here, but the possibility of being locked out of a synced account after a password change there which you cannot replicate on Outlook.com, causing repeated unsuccessful POP3 login attempts, may be a breach of Data Protection Legislation, as the user is being denied access to their own data.
I have told MS I think it is a breach and intend to report them to the Data Protection Commission here.