


Problem is now, when you install Outlook 365, when you try to add account for exchange mailbox on o365, Outlook is going to report that account already exists, and you cannot add it. Follow these steps for the same : Configure Hotmail account in MS Outlook Open Outlook. To save Hotmail backup in Outlook, you have to configure your Hotmail account in Microsoft Outlook application. You open Outlook and simple get mailbox for (1) (POP3) and (o365)Īfter that, i migrate MX, and inform users to start using new mailbox tomorrow, and then migrate old mailbox to new one. To add Hotmail emails to O365, first you need to backup Hotmail data in PST file and then upload this PST file in Office 365 webmail. Office 365 Exchange, registered and mailbox for i usually do, for client with few users, is to configure Outlook to have both mailboxes (accounts), one for POP3 on 3rd party mail and second via autodiscover on Office 365, for This works if you have Outlook 2010 or 2013, and i am sure it worked for Outlook 2016 some time ago.

Server 1: 3rd party, registered mydomain and mailbox with MX pointing to it. Client is migrating from some 3rd party mail to Office 365.
