Impacts of changing default domain in Office 365 tenancy?

Hi Robert,

Just curious on what happened.

100% cloud e-mail client changed company name and domain. Client wants e-mail coming from new domain.

I went to change in Admin screen and was told it would change everybody's log in. Decided to wait so I could plan for all phone and tablet changes for users.

One week later went in and now Admin center lets me change individually. (Better for me honestly, do not want to have everybody set their e-mail up again.)

I did a test and user stayed connected through Outlook from old domain.

So, did you have to remove Outlook account and just redo it?

I figured this would be the procedure on phones but not sure about desktop.

If you can, let me know what happened.

Thanks,

Victor