This seems to be since last months update. Every mail that is sent from Outlook Mobile on Android (Pixel 3) is also saved as a draft. The account is set up as EAS and the user is reporting this did not always happen ... I am not on the September Build yet, still on the August. But I did not see this in the release notes, so I am wondering if anyone else is having this issue and what it may be ... ALSO is there a *preferred* mobile app on Android to use with SmarterMail as I notice sometimes the Outlook App has sync issues. 

Thanks