In my three children's Outlook accounts, they cannot send emails to anyone other than a handful of relatives.  I suspect this is a block left over from when Microsoft Family Safety allowed us to control the addresses they could mail to.  But that feature has been removed, but it feels as if the "blocks" are still in place.  This leaves us unable to use their accounts to mail to friends, teachers, etc.

Can someone help me remove those blocks?

The symptoms are very clear:

1.  In any of the accounts, I can send an email to my own or my wife's Outlook account.  These are addresses we permitted some time ago in Microsoft Family Safety.

2.  Immediately thereafter, if I try to send an email to another address (e.g., to my work email address which I never "permitted" back in the day), the email goes right into the Outbox and sits there with no error. 

3.  This happens on both our iPhones, iPads and PCs; so it is not related to the browser, any cache issue, etc.

Please help.

David