Instead of screnshots, select the … ⇒ Show Headers, and remove your name, email address, time zone, and IPs from the .EML then

[post email here]

Found the email btw:

@Zedstrian@sopuli.xyz can only conjecture, but maybe they include it as a fallback option, in case some providers mark the less known domain legacygames.com as potential spam?

If you have any immediate questions or need assistance backing up your library, please reach out to us at customerservice@legacygames.com, or our company Gmail account at legacy95@gmail.com

Given that they do have an official customer support email address, them also sharing an 'official' Gmail account seems a bit unprofessional.