[Dovecot] dovecot sieve sends vacation messages with null envelope sender
Josef Liška
jl at chl.cz
Tue Aug 12 14:32:14 EEST 2008
I am using this simple sieve script to do "vacation":
require ["fileinto", "vacation"];
if exists "X-Spam-Flag" {
stop;
}
vacation
:days 1
:subject "Out of office reply"
:addresses ["<email address hidden>", "<email address hidden>" ]
"I am on vacation until 2008-08-07.
If you have something urgent, please contact: Jan Novak <email address
hidden>
";
I use sql lookups for users and passwords. For some reason the default
location ~/.dovecot-sieve did not work for some reason. However I prefer
to put sieve scripts to /var/lib/sieve and when I added additional field
to lookup with this location it started to work.
But it sends vacation messages with null envelope sender, which is in my
opinion undesirable, because many vacation messages are caught in spam
filters.
I think there could be same sender on envelope.
In dovecot-sieve/src/sieve-cmu.c around line 380 is a call to
smtp_client_open(src->addr, NULL, &f);
NULL could be replaced with src->fromaddr
Maybe some more patching may be necesary. I found similar patch for
cyrus-imapd at
http://oss.digirati.com.br/mail/cyrus.html
<http://oss.digirati.com.br/mail/cyrus.html>
My current system:
1) Ubuntu 8.04.1
jl at mail:~$ dovecot --version
1.0.15
It is a backported package from ubuntu intrepid ibex. However the same
applies for dovecot 1.0.10 which is in ubuntu 8.04.
Summary:
I expect messages sent by vacation recipe should have envelope from same
as user's e-mail address. This is then writen to Return-Path: header by
receiving MTA
NULL envelope from is used, resulting (in my case) to Return-Path: <>
rewriten by postfix to Return-Path: <MAILER-DAEMON> by receiving MTA
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