I send out plain text mails from my web application (e.g. password reset); I'm pretty sure I use proper CRLF
line endings all over both header and text. Some lines can be longer than 78 characters, but none more than 998+2.
For some mails, Outlook mail clients collapse the whitespace in the footer parts (after the --
line): despite the CRLF
linebreaks are present, they look like being turned into ordinary space characters, giving me a very long line. (edit, clarifying: Linebreaks occur, but not at the intended positions but only as given by the window width.)
Are there methods to tell Outlook to preserve the linebreaks, e.g. some header? Of course I'd prefer a RFC-conforming solution, but it might be OK if it doesn't harm other clients.