The ProtonMail web app lets you send emails using the formatted SimpleLogin reverse alias, for example "Proton | contact at proton.me" <uuid@simplelogin.co>. This is the format that you get when you copy a reverse alias from the SimpleLogin Android app.

This makes it much easier to keep track of who your emails were sent to, rather than just having uuid@simplelogin.co.

The Android app doesn't let you send emails using the formatted reverse alias, and it would be great to see this fixed so we can easily identify the recipient of an email, even if we're using the mobile app.