Forum Discussion
Lisa Hammond-Marsden
Sep 16, 2018Copper Contributor
Office 365 mixed mode setup
Hi, I am setting up a customer on O365. He has a business with no domain, and uses an NTLworld email account. He also works for a second business and has an email address with their domain. They have...
- Sep 16, 2018You cannot. If the second company does not want to move to O365 then you cannot register their domain. The first email address is an ISP and not owned by the company, so you cannot. In the case of the first you could register an name like the company name in O365, for example 'firstcompany', but this would give your client firstcompany.onmicrosoft.com as their email address domain. That's a bad idea. Best idea, buy a domain for the client and use that and not virginmedia.com and forward the emails from the ISP to Exchange Online
Brian Reid
Sep 16, 2018MVP
You cannot. If the second company does not want to move to O365 then you cannot register their domain. The first email address is an ISP and not owned by the company, so you cannot. In the case of the first you could register an name like the company name in O365, for example 'firstcompany', but this would give your client firstcompany.onmicrosoft.com as their email address domain. That's a bad idea. Best idea, buy a domain for the client and use that and not virginmedia.com and forward the emails from the ISP to Exchange Online
- Lisa Hammond-MarsdenSep 17, 2018Copper ContributorThanks for the reply Brian. This is as I'd thought, but I was hoping I was wrong.