How can I convert Gmail to iCloud mail?

Hello Saint Joe! If you are looking to migrate from gmail to iCloud mail, you can do so in the mail app. You can go to “All Mailboxes”, select all the emails, and move them to the Inbox of your iCloud. As for folders, you can recreate these in your iCloud mailbox and repeat the directions from before, with the exception of going into folder X on the gmail mailbox, selecting all emails in it, and moving to folder X on the iCloud mailbox. I hope this answered your question. Please feel free to reply if you still need more assistance.

It was my pleasure assisting you today!

-Ethan