Incorrect email body encoding on iOS 14.6 and 14.7

[flachware]

The email body of the 'Send Download Links' email is encoded incorrectly on iOS 14.6 and 14.7 (visible
tags instead of actual newlines)

Download Tropy for macOS (Intel):<BR>https://github.com/tropy/tropy/releases/download/1.9.0/tropy-1.9.0.dmg<BR><BR>Download Tropy for macOS (Silicon):<BR>https://github.com/tropy/tropy/releases/download/1.9.0/tropy-1.9.0-arm64.dmg<BR><BR>Download Tropy for Linux (x64):<BR>https://github.com/tropy/tropy/releases/download/1.9.0/tropy-1.9.0-x64.tar.bz2<BR><BR>Download Tropy for Windows (x64):<BR>https://github.com/tropy/tropy/releases/download/1.9.0/setup-tropy-1.9.0-x64.exe<BR>

This happens on iOS 14.6 and 14.7 and seems to be an Apple Mail bug on iOS. It works correctly again on iOS 15. https://developer.apple.com/forums/thread/681023