An error occurred while saving the commentAnonymous commented
Agreed that this is a small but necessary feature, the omission of which is completely inexplicable in a modern email client. Literally EVERY other client I've tried, will correctly handle such quoting - clearly indicating quoted text, allowing for users to increase/decrease the quote level, etc.
"joshua.berry"s comment previously is quite telling: A standard quoting style for replies was adopted as an RFC in 2004 … and yet Outlook doesn't support it in 2018. This is incredibly frustrating.