MIT Exchange Email to MIT Office 365 Email Notes
This document is the narrative of our transition experience and a "choose your own adventure" for your own transition experience
PRE-TRANSITION
What needs to be done pre-transition
- Read/skim the IS&T O365 Pre-transition information: https://kb.mit.edu/confluence/display/istcontrib/Office+365+Pre-Migration+Information
AND the IS&T Migration Checklist: https://kb.mit.edu/confluence/display/istcontrib/Office+365+-+Email+and+Calendaring+-+Migration+Checklist- Make a note if any of the listed conditions apply to you.
- Plan contingencies if a condition applies to you.
- If you are not sure what needs to be done for any condition, contact the IS&T O365 representative who is helping your DLC transition.
- Clean up your emails including deleting and purging deleted emails and junk emails .
- Notify IS&T of ANY AND ALL shared MIT Exchange calendar resources as they will need to be migrated as well.
- Anyone who is a user sharing a calendar or has Delegate permissions to see a user's Calendar must be all be transitioned at the same time.
The TRANSITION
On Monday September 19th 2022, Albert and Dan were migrated from MIT Exchange to MIT O365 Email. As Apple Mail and iCal users these are the notes of what we saw.
When the cut over from MIT Exchange to MIT O365 occurs you may see errors. As Apple Mail users this is what we saw. This means that your email has been transitioned to O365 and you should stop using MIT Exchange.
What To Do
The IS&T O365 representative will notify you at the pre-determined date and time when your Emails have been cut over. This means the email migration has completed and access to the old MIT Exchange Email has been cut off.
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For me with about 42k email messages the download took 5 hours on campus over an Ethernet connection. At home I left my machine on and running overnight. Home internet speeds will vary depending on your plan. Since the end of Net Neutrality, cheaper plans usually mean slower speeds.
During the Download
Apple Mail was NOT really usable on the Mac at all during the download as it was hung most of the time. We recommend users leave Apple Mail running to download the emails but do NOT use it to check your email while it is busy downloading your emails from the Outlook365 cloud from Microsoft. Instead, use the NEW O365 OWA webmail on your preferred browser which can be found at outlook.office.com . Users who have been migrated to O365 should stop using the old Exchange OWA (owa.mit.edu). It will no longer work for you.
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https://kb.mit.edu/confluence/display/istcontrib/Office+365+Post-Migration+-+Web
Mobile Devices
All iOS and Android devices will need to have the email accounts deleted off from the devices and added again as the old Exchange accounts are now on Office 365.
- What needs to be done on your Instructions for iOS device:
https://kb.mit.edu/confluence/display/istcontrib/Office+365+-+Email+and+Calendaring+-+iOS+Configuration - What needs to be done on your Instructions for Android device:
https://kb.mit.edu/confluence/display/istcontrib/Office+365+Post-Migration+-+Outlook+for+Android
Resources and References and the fine print
- Official IS&T Office 365 Email and Calendaring Landing Page
- Office 365 Email and Calendaring - What is my Quota and How do I Check it?
- Office 365 Email and Calendaring - How do I use Automatic Replies?
- Office 365 - Reserving Resources (Rooms) with Outlook on the Web
- Microsoft's position on Foreign Intelligence Surveillance Act Orders and National Security Letters