Constification
[exim.git] / configs / config.samples / C046
CommitLineData
e0f3765a
PH
1Date: Wed, 18 Sep 2002 15:22:44 +0100 (BST)
2From: Tony Finch <fanf2@cam.ac.uk>
3
4I wanted to be able to preserve the envelope contents (except for the return
5path when I'm feeling paranoid about error handling).
6
7Feel free to add this to the examples -- someone else might find it useful. I
8also have a complete configuration which I have been recommending to other
9people in Cambridge (although it could work elsewhere with tweaks) at
10http://www-uxsup.csx.cam.ac.uk/~fanf2/conf4.satellite.
11
12# Deliver a duplicate of some proportion of all messages to a special
13# machine specified in the file /MAIL_TAP_HOST, if it exists. The
14# probability of sending a message is the reciprocal of the second
15# number in the hash part of the condition. The address data is used
16# to prevent redirected addresses from being tapped twice. The
17# originating host and sender are recorded in extra headers. If the
18# delivery fails the bounce goes to a rubbish bin (although this means
19# that the traffic seen by the tap is not quite the same as the
20# traffic seen here).
21
22traffic_tap:
23 unseen
24 no_expn
25 no_verify
26 transport = smtp
27 driver = manualroute
28 require_files = /MAIL_TAP_HOST
29 route_data = ${readfile{/MAIL_TAP_HOST}{:}}
30 address_data = ${if!def:address_data{tapped}fail}
31 condition = ${if!eq{a}{${hash_1_1:$message_headers$message_body}}{no}{yes}}
32 headers_add = ${if!def:sender_host_address{}{X-Orig-Remote-Host: $sender_host_address}}\n\
33 X-Orig-Return-Path: $return_path
34 errors_to = YOUR_RUBBISH_BIN_ADDRESS_HERE
35