How to configure shared Office 365 mailbox on iOS

Updated 10/12/15 to include SSL support

1. Set your iOS device to Airplane Mode. You can find this at the top of the list within SETTINGS.
2. On the iPad or iPhone, go to SETTINGS > MAIL, CONTACTS, CALENDARS > ADD ACCOUNT
3. Select OTHER from the list of types.
   
4. Select ADD MAIL ACCOUNT 

   

5. Enter a name for the mail account (eg “Enquiries”)
6. Enter the email address of the shared mailbox
7. Enter the password of a mailbox that has access to the shared mailbox (eg your own password if you have access to the shared mailbox)
8. Enter a description for the mailbox (eg “Enquiries”)
9. Tap NEXT
10. Select IMAP
    
11. Fill in the blank information:
    i) Host name: outlook.office365.com

    ii) In the user name box, enter the email address of the account that has access to the shared mailbox, followed by a “\” and then the email address of the shared mailbox itself. (eg “your.name@yourdomain.com\enquiries@yourdomain.com“)

    iii) Outgoing mail server: smtp.office365.com

    iv) User name: Enter the email address of the mailbox with the permission to “send as” the shared mailbox.

    v) Password: Enter the password of the mailbox with the permission to access the shared mailbox (same as step ‘iv’ above)

    vi) Tap NEXT

12. As your device is in Airplane Mode, it will be unable to check your settings and will produce this warning:
    The IMAP server “outlook.office365.com” is not responding. Check your network connection and that you entered the correct information in the “Incoming Mail Server” field.Simply tap OK on the message, then NEXT and then tap SAVE.

    

13. Switch off the NOTES sync which should leave just MAIL switched on.
14. Tap SAVE
15. Tap the email account you have just created from within the list of accounts.
16. Tap the ACCOUNT field
17. Scroll to the bottom of the page and tap ADVANCED
18. Scroll down and switch on the setting called USE SSL
19. Tap < ACCOUNT in the top-left corner of the page
20. Tap DONE in the top-right corner of the page
21. Tap OK on the warning message again.
22. Tap DONE in the top-right corner of the page again.
23. Tap SAVE
24. Tap < MAIL in the top-left corner of the page
25. Tap < SETTINGS in the top-left corner of the page
26. Scroll to the top of the settings page and switch AIRPLANE MODE OFF.