Click New E-Mail Address Policy to start creating a new policy.
New Email Address Policy
For this example I’ve narrowed the scope of the email address policy to just one particular OU for “Education”, the new business entity.
Select recipient container for new email address policy
Email address policy conditions
Next I’ll add an SMTP address of %firstname.lastname@example.org to the policy (%m = “alias”).
Configuring SMTP addresses for an email address policy
Here now you can add the email address and I have select do not apply.
Now when you click next, and getting error. Now time to dig why error is reproducing