Insert a line break in mailto body

Question

I would like to insert a line break into my mailto body. I tried %0A, %0D and %0D%0A. Nothing worked for me. I tested on Gmail, Yahoo, Apple Mail, Outlook 2010, Outlook.com

Answer 1

As per RFC2368 which defines mailto:, further reinforced by an example in RFC1738, it is explicitly stated that the only valid way to generate a line break is with %0D%0A.

This also applies to all url schemes such as gopher, smtp, sdp, imap, ldap, etc..