An email that uses From Name, From Address, and Reply-to personalization with an automated message group, or as an Autoresponder, produces the error: Attention: The From Name may not be blank.
If personalization is already used in one of these fields, why is an error produced?
You are receiving this error because the From Name, From Address, and Reply-to address needs to be filled out even though you are using personalization. You can enter the default provisioned from/reply to domains in the Email Body and any "from name" can be used. Also, you can complete this information in the Automate A Mail Send screen.