After you set up email in Outlook, you can import your previous email,
calendar, and contacts into your new Office 365 account.
Step 1: Export your old email
1. In Outlook, choose File > Open & Export > Import/Export.
2. In the Import and Export Wizard, select Export to a File, and then
choose Next.
3. Select Outlook Data File (.pst), and then choose Next.
4. Select your old email account, select Include subfolders, and then
choose Next.
5. Note the default location or browse to select a new one, change the
file name if you like, leave Replace duplicates with items exported
selected, and then choose Finish.
6. Leave the option to create a password blank, and choose OK.
Step 2: Import your old email into your Office 365 account
1. In Outlook, choose File > Open > Export > Import/Export.
2. In the Import and Export Wizard, select Import from another
program or file, and then choose Next.
3. Select Outlook Data File (.pst), and then choose Next.
4. Choose Browse, locate the backup file you created when you exported
your old email, and choose Open.
5. Leave Replace duplicates with items exported selected and choose
Next.
6. Leave the Outlook Data File selected, make sure Include subfolders
is selected, select Import items into the same folder in, and make
sure your new Office 365 email account appears in the list.
7. Choose Finish. You’ll start to see your old emails, calendar items, and
contacts appear in your new account.
8. To delete the old email account (from Outlook, but not from the
servers), right-click it and choose Remove “account name”