I can't believe I'm posting about this issue.
I'm using the Online Outlook inbox.
I like to participate in mailing lists and such and I need to reply/quote to email in plain text (old style, I guess?) and indicate the reply/quote I've selected with '>'. If I use the HTML email text and use the quote button, I get a grey '|' which doesn't appear in plain text...
I was wondering what any solutions to this problem exist? I can't find any options in the web application settings.