1-15-2020 - Guide was updated with the new legal terms and conditions.
4-16-2021 - Guide was updated with the new Terms and Conditions as of 3-22-2021, TEM environment information, new Mail.XML 24 release, and minor edit.
4-30-2021 - Guide updated with the new Terms and Conditions as of 4-23-2021.
3-14-2022 - Guide updated with the new Mail.XML version 25, including new fields added to the Campaign Data block.
7-1-2022 - Guide update to reflect implementation of the new Informed Delivery fields and minor edits and updates.