I tried to get Thunderbird working with Outlook.com mail. Thunderbird automatically recognizes the server information for Outlook.com and also that you need OAuth2 authentication. IMAPS was working afterwards, but I was unable to send mails via the SMTP server “smtp-mail.outlook.com”
Forwarding mails to Google Account
All my mails are received by my own mail server and are then forwarded to my Google account (as I am using Google Mail as my mail client). Unfortunately if you just forward mails with POSTFIX you might also forward