id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
3985	send_mail user-defined headers	ido	Adrian Holovaty	"How do send_mail, send_mass_mail, etc. permit one to define custom headers (such as for S/MIME, List-Id, etc.) in the outgoing email message?

This is a critical component of sending email that should not be overlooked in these docs."		closed	Core (Mail)	dev		fixed	custom headers		Accepted	1	0	0	1	0	0