badoo/ssmtp — pull request #1 by puggan (2013-10-30 23:04:06+00:00)
Title: Made from_strip case-insesitive

if the from-header looks like
"FROM: user@domain.net"
the return-path becomes
"Return-path: <"FROM:user"@domain.net>"

while
"From: user@domain.net"
and
"FROM: <>"
makes
"Return-path: <>"