@sneak @Gargron@mastodon.online I can read this but the code is definitely not colored like that by our CSS - it appears white as it is supposed to on FastMail's web client. It's the e-mail client trying to do something "smart" here.
@sneak @Gargron@mastodon.online iOS is not free of bugs. I cannot explain what is happening here. You can just copypaste it though, you don't have to actually read it with your eyes.