Email to Case Email Address was Verified but does Not appear as an option in the From

Hello, 

I have created an Email-to-Case address and verified it. 

When creating an Email Alert, I would like to set the 'From' email address to this email address. But it does not appear as an option. 

Enable Email to Case check box is checked. 

I have also added the same email address as an Organization Wide Address.  #Service Cloud