Hi @mac338, I am afraid that’s not an option right now. The Send Email node only uses an SMTP connection, it will not perform actions require other connection types (like moving messages into folders through an IMAP connection, similar to what a desktop email client might do).
This would require a regular IMAP node (not the trigger node) which n8n does not currently have I am afraid. Perhaps you want to vote on the related feature request Mark emails as read and add a comment with the exact operations you’d like to see?