Step 1: Select Settings from the home screen of your iPhone:
Step 2: Choose Mail, Contacts, Calendars and click Add Account:
Step 3: Choose Other from the list that appears:
Step 4: Select Add Mail Account. In the New Account menu, you will need to specify the following records:
Name – your name (will appear as sender name)
Address – your full office365 mail address
Password – the password for this office365 mail address
Description – lets you specify any description (we suggest you use your email address)
Step 5: Select protocol type: IMAP.
Step 6: Settings for IMAP:
In the fields for both Incoming Mail Server and Outgoing Mail Server, indicate the following settings:
Name, Address and Description: should have been already filled in
Host name: outlook.office365.com
User Name: your email address
Password: password for your email
Step 7: If you use IMAP, you can enable the following services:
Click Save and wait while the system completes necessary checks.
Step 8: When the checks are finished, you’ll be redirected to the Mail, Contacts, Calendars screen. Choose your newly created account there:
Step 9: Scroll down and select Advanced:
Step 10: Choose additional settings for IMAP.
If you set IMAP connection, you need to use port 993 (with SSL) or port 143 (without SSL).
Step 11: In order to set up additional settings for outgoing server, you will need to return in the previous menu and then go to Outgoing Mail Server by clicking on the host name of the server:
Outgoing Server: smtp.office365.com
Step 12: For Outgoing Server (SMTP), select port 465 (with SSL) or port 587 (without SSL):
Step 13: Once the settings are verified, your account is active and ready to use.
Step 14: To test your new email account, go to Messages and try sending and receiving emails.
Step 15: Click the Create button.