Hey @beakydrew3! There's no such register; however, our deliverability lead has put together an excellent guide on improving your deliverability here4 :) And there are more where that came from in this category4 of our knowledge base!
Join the ConvertKit Community to connect and grow alongside other Creators. It's totally free!
9 Steps to Improve Email Deliverability
Yep! Once you're logged in click on your name in the upper right, then go to Account Settings. On the "Email" panel, you can edit the names/address used for sending.