On Wed, Jun 26, 2019 at 04:27:06PM -0400, Wietse Venema wrote: > Viktor Dukhovni: > > > On Wed, Jun 26, 2019 at 12:39:02PM -0700, Ronald F. Guilmette wrote: > > > > > When Postfix hands a message to something... say a script invoked via > > > some ~/.forward file... which one of these four formats will the message > > > be in? > > > > See: > > https://github.com/vdukhovni/postfix/blob/master/postfix/src/global/mail_copy.c#L235 > > > > So the answer is mboxo. > > According to 'man 8 local', section 'EXTERNAL COMMAND DELIVERY': > The local(8) daemon prepends a "From sender time_stamp" envelope header > to each message, prepends an X-Original-To: header with the recipient > address as given to Postfix, prepends an optional Delivered-To: header > with the final recipient envelope address, prepends a Return-Path: > header with the sender envelope address, and appends no empty line.
Oops, sorry, my answer was about delivery by local(8) directly to a mailbox, not a command invoked via a pipe. -- Viktor.