Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
In scoutbook I have the duplicate email warning. And I am not receiving any messages from scouts that have tried to contact me regarding merit badges. A scout was assigned me as a MBC for two badges and I have zero notifications or emails after their parent tried to contact me through scoutbook.
@ThomasVan_Epps- well you would not receive notifications in scoutbook itself. The duplicate email is most likely that one or more of your children have your email on their account. Any emails sent via scoutbook would come to your email provider. The MBC menu is what you should be using for all MB work.