Hello,
in order to keep things simple and less complex, I left the sender default.
The receipt is an Outlook account.
I just set smpt and smpt.live.com but it came back with connection errors 111 and 110, using ports 587 and 25.
Emails are handled by an ISP so I really don't think that smtp.live.com will be the right choice.
In either cases emails are not received.