Enter 2 email addresses for a contact

Current: Delivered?

Where can I find this option HubSpot now? We are just in the process of onboarding and prepare for the data migration. Almost 20% of all our contacts (b2b) have a second, shortened email address (eg instead of firstname.lastname@domain.com the second is eg FL@domain.com or FLastname@domain.com or a department mail address like ITAdmins@domain.com)

So, where can I find it so that I can change import mapping before we push zhe button?