Yes, they will receive two emails. One will be the receipt and the other will be an email they can forward to their guests to update their own information including meal choice if there is one.

Click Here to see what the ticket receipt looks like. 

Ticket Purchase Confirmation Email: All emails listed under Software Settings > Account Settings > Contact Information will receive all ticket purchase confirmation emails, unless an email is added under Event Tickets > Ticket Page Settings > General Settings > Receipt Email Address.