Lähettäjä: stefano\.sabatini-lala Päiväys: Vastaanottaja: exim-users Aihe: [exim] Return-path rewriting or removal at transport level
I'm facing some problem with emails sent from my system
(debian etch + exim 4.63). It happens sometimes they don't
get received by their recipient, so I think they're filtered
probably because they have a Return-path header value
different from the From header value, or because their
Return-path value, corresponding to a local address (of the
form user@???) is unreachable.
Emails are filtered only by some providers and mailing
lists, included this.
I'm trying to remove the Return-path from all the *outgoing*
mails. The following snippet configures my smarthost transport:
# this rule replaces the From value in the headers if it
corresponds
# to that of a local user
# I can't rewrite the Return-path from here
headers_rewrite = *@+local_domains \
"${lookup{${local_part}}lsearch{/etc/email-addresses}
{$value}fail}" f
headers_remove = Return-path
The problem is that it doesn't work. The Return-path of all
the outcoming mails corresponds to the local address of the
user who sent the email.
What's wrong with it (sorry if this question implyes a deep
misunderstanding of exim configuration)?
Another possibility would be to replace the existing
Return-path with the value of the from header, but it seems
this isn't possible at transport time.