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: POP3.
Step 6: Settings for POP3:
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: When the checks are finished, you’ll be redirected to the Mail, Contacts, Calendars screen. Choose your newly created account there:
Step 8: Scroll down and select Advanced:
Step 9: Choose additional settings for POP.
If you chose POP3, you need to use port 995 (with SSL) or port 110 (without SSL):
Step 10: 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 11: For Outgoing Server (SMTP), select port 465 (with SSL) or port 587 (without SSL):
Step 12: Once the settings are verified, your account is active and ready to use.
Step 13: To test your new email account, go to Messages and try sending and receiving emails.
Step 14: Click the Create button.