If you’ve followed our guide on How to properly setup and configure Nokia Messaging on the N900, you might have come across this problem. If try to add a Yahoo email to your Nokia Messaging account at http://email.nokia.com it will tell you: “This email address must be added on the phone.”

You can easily add Google Mail, Windows Live Hotmail, Ovi Mail, and POP/IMAP email accounts at http://email.nokia.com, but not a Yahoo account. The reason is simple, as a Nokia rep explains: “Yahoo is somewhat special for Nokia Messaging in that you aren’t allowed to add Yahoo email addresses on the email.nokia.com website.  That’s basically due to legal reasons–per our Yahoo contract we need to disable Yahoo support in a few countries (the list is small and includes US embargoed countries like Cuba) and we can’t really tell what country you are in unless you do it from the phone.”

So how can you add this to your Nokia Messaging Account using the N900?

1.Making sure you have an active internet connection. Go into the N900’s Email program. Here you should see your Nokia Messaging account. Do not select it.

2.Select the drop down menu “E-mail” and choose “Edit Accounts.” Here you should be able to see Nokia Messaging.

3.Select it and choose “Mailboxes”

4.Select Add new mailbox.

5.Choose your Region and under Service Provider choose”Nokia Messaging” and click next.

6.Instead of entering your Nokia Messaging details, enter you Yahoo email and password.

7.Now Choose: “Add this  address to account”  I did notice that after adding my Yahoo mail, the phone freezes. You may need to restart your device at this point.

8.Go back to the N900’s built-in Email application, where you should see the Nokia Messaging account. Do not select it, but choose the drop down menu “E-mail” at the top and choose “Edit accounts” Select Nokia Messaging and choose “Delete.”

9.From the drop-down menu ‘E-mail” select “New Account”. Follow the steps to choose your Region and under “Service Provider” choose “Nokia Messaging.”

10.Enter your Nokia Messaging email and password. (The email and password you first used to sign up with Nokia Messaging). Activate your account and you’re done!

11.Yahoo email should now magically appear on the N900 and at http://email.nokia.com.