Note: The sunset for the v1 Marketing Email API has been delayed to November 1st, 2025. The post has been updated to reflect the new date. Today we're announcing changes for the two versions of the Marketing Emails API.
Starting October 26th, 2023, any marketing emails, including those manually sent or sent through automation that use a personalization token to populate the "From" address field, will require email verification. If an email address is not ...