Once you've created the relying party trust, you can create the claim rules.

1. To create a new rule, click on Add Rule. Create a Send LDAP Attributes as Claims rule.

2. On the next screen, using Active Directory as your attribute store, do the following:

2a. From the LDAP Attribute column, select E-Mail Address.
2b. From the Outgoing Claim Type, select E-Mail Address.

3. Safe the rule by clicking OK

4. Select E-Mail Address as the Incoming Claim Type.

5. For Outgoing Claim Type, select Name ID.

6. For Outgoing Name ID Format, select Email.

7. Select Pass through all claim values as default.

8. Lastly, click OK to create the claim rule.