I'm migrating from hosted Exchange 2007 using Sherweb to using Office 365. Once I've set up the mailboxes and migrated all data to O365 (using MigrationWiz), how do I least painfully update workstations or instruct users to update workstations so their Outlook points at the O365 server and ideally doesn't have to download the entire mailbox again?
I'm guessing they could each either:
- delete their account and re-add it, or
- Account Settings > select Exchange account > Change > More Settings > Connection tab > Exchange Proxy Settings > modify the urls.
Option 1 is probably terrible as it'll require outlook to re-download their entire mailbox, but maybe that's required (e.g. if the id's of the mail items aren't preserved when migrating from one server to another)?
I have about a dozen users and their workstations aren't managed by Active Directory but I'm happy to run through a few steps with each of them. It's not the end of the world if it's a manual process and requires re-downloading the entire mailbox, but I'd love to avoid that if possible.
I have already performed the MigrationWiz migrations and updated the DNS records.
Most users now have Outlook from Office 365 installed, with a couple still on Outlook 2010.
This discussion suggests they need to add a new account and presumably delete the old one when it's no longer needed...