We have personalised email addresses - say address A in my case - which I have registered. Emails to these addresses were forwarded to the actual addresses at @btinternet.com, I had set up WLM so that sent messages showed them originating from eg address A. We have now had to change and have @outlook.com and @gmail.com addresses but have failed to set up WLM to show the messages originating from eg address A. Help please!

OS is Win 7 Home Premium 64 bit.

Thanks