For staff · Staff whose mailbox is moving from our own Exchange server to Exchange Online

Exchange Server to Exchange Online: staff guide

What staff need to know when their mailbox moves from Exchange Server to Exchange Online, with ready-to-send announcement, reminder and go-live emails.

IT playbook
What changes

What is different for you

ItemBeforeAfter
Where your mailbox livesOn [ORGANISATION]'s own Exchange serverIn Microsoft 365 (Exchange Online)
Webmail address[OLD WEBMAIL ADDRESS]https://outlook.office.com
Outlook on your computerConnects to our serverAsks you to restart once after your mailbox moves. Some people need Outlook set up again, and IT will help.
Mail app on your phoneConnects to our serverUsually keeps working. If it stops getting new mail, remove the work account and add it again.

What stays the same

  • Your email address
  • Your existing email, folders, calendar and contacts. They move with your mailbox.
  • The people you email and the way you address messages
  • Access to shared mailboxes you use today. People who share mailboxes, and managers with their assistants, move together.
  • Your password (unless IT tells you otherwise)
What to do

Your checklist

Before the move

  1. Note your move date: [DATE].
  2. Tell [IT CONTACT] by [DATE] if you manage someone else's mailbox or calendar, or someone manages yours, so you can be moved in the same group.
  3. Make sure you know your [ORGANISATION] password and can sign in. You may be asked for it after the move.
  4. If you use a laptop, leave it plugged in and connected on the evening of [DATE]. Outlook downloads a fresh copy of your mail after the move, and a big mailbox takes a while.
  5. Bookmark the new webmail address: https://outlook.office.com.

On the day

  1. The switch happens out of hours. Keep working as normal until then.
  2. When Outlook shows a message asking you to restart it, save any open emails, close Outlook and open it again.
  3. Outlook may be slow for a while as it downloads your mail. That is normal. Leave it open.
  4. If Outlook cannot connect, keeps asking for your password or shows an empty mailbox, contact [IT CONTACT]. It may need setting up again, which IT can do with you.
  5. If your phone stops getting new mail, remove the work email account from the phone's mail settings and add it again with your email address and password.

After the move

  1. Check that your recent emails, folders and calendar look as you expect.
  2. Use https://outlook.office.com for webmail from now on. The old webmail address will stop working.
  3. If you open a shared mailbox, check you can still see it and send from it.
  4. Report anything missing or odd to [IT CONTACT] so it can be fixed while the old server is still available.
Questions

Questions people ask

Will I lose any email?

No. Your whole mailbox is copied, including folders, calendar and contacts. Mail that arrives during the move is copied too.

Will my email address change?

No. You keep the same address, and people outside [ORGANISATION] will not notice any change.

Do I need to do anything on the night?

No. IT does the switch out of hours. You only need to restart Outlook when it asks.

Why is Outlook slow the first time?

Outlook builds a fresh local copy of your mailbox from Microsoft 365. Leave it open and connected and it catches up.

My phone has stopped getting email. What do I do?

Remove the work email account from the phone and add it again with your email address and password. If that does not work, contact [IT CONTACT].

I share a calendar with someone who has not moved yet. Will it still work?

Usually yes. IT moves people who share mailboxes and calendars in the same group to avoid problems. Tell [IT CONTACT] if something stops working.

We use public folders. What happens to them?

If [ORGANISATION] uses public folders, IT moves them separately after everyone's mailbox has moved. There is a short period when they are locked while the last copy runs. IT will tell you the date.

For IT: ready-to-send emails

Emails you can send

Replace the [placeholders], then copy each email into your mail client.