The issue with very light text in emails sent to Meta when read on the Android Gmail app has been fixed. The problem was that we needed to explicitly set the font-weight property for all td elements that are used in the body of the email.
Thanks again for reporting this! We send a lot of emails from Meta and should have caught the problem sooner.
There are still some issues with the custom email template that we are using when emails are read on Outlook - the side border of the emails isn’t displayed correctly and there is a blue bar at the bottom of the emails that doesn’t look great. I think it’s time for a new email template. We’ll get that taken care of soon.