To configure your email to receive and send out email as OIST email address hosted on office365. here's how i do it. For receiving, it's relatively easy. Go into outlook and sign in OIST email and set up a condition to forward all email to your gmail account. For sending it was a bit more tricky. although the POP3 and IMTP were enabled with office365 to enable email software, using the address from oist was not accepted by gmail. I did it by following these steps: 1. open cmd prompt in your desktop 2. ping outlook.office365.com 3. find the ip address for it. 4. go to gmail, and set up a send mail as account. input the ip from the abbove, and set the connection through port 587 using TLS encryption with your oist email account and password.