preline - prepend lines to message
in .qmailext: | preline command
preline feeds each incoming mail message through command. At the
top of each message it inserts a UUCP-style From_ line, a
Return-Path line, and a Delivered-To line.
preline is useful for procmail and ELM's
filter, which do not understand the qmail-command environment
variables.
- -d
- Do not include the Delivered-To line. You should use this option
when the recipient of the incoming mail message is actually under remote
control, but was sent here through control/virtualdomains for
manual routing.
- -f
- Do not include the From_ line. You should use this option except
for commands that create mbox files.
- -r
- Do not include the Return-Path line.
mbox(5), qmail-command(8)