On 08/18/2016 04:48 AM, Richard Hipp wrote:
>
> It would be great if there were some way to send a message where the
>>From field of each recipient was slightly different, and different in
> a way that was traceable back to the list member. That would allow me
> to identify the leaker.
There are various things such as VERP and full personalization that add
recipient specific information to the envelope sender and headers such
as Sender:, Errors-To: and even To:, but these probably won't help.
Altering the From: based on recipient can be done by modifying the code.
Say you have a message "From: Ann User <a...@example.com>" and you want
to change that to "From: Ann User <ann+...@example.com>" where xxx is a
unique code for each recipient.
First, ensure that either
VERP_DELIVERY_INTERVAL = 1
is in mm_cfg.py to enable VERP or that the list's Non-digest options ->
personalize is Yes or Full personalization. This will make SMTPDirect.py
use the verpdeliver function to deliver a separate message to each
recipient.
Then you need to create a mapping from list members to the 'xxx' codes.
You can for example create a file with one line per list member of the form:
memb...@example.com code1
memb...@example.com code2
...
with a single space between the member address and the code.
Finally, at the beginning of Mailman/Handlers/SMTPDirect.py, following
the line
DOT = '.'
put
import re
CODES = {}
for line in open('path/to/above/file'):
addr, code = line.split(' ')
CODES[addr.lower()] = code
And then at the end of the verpdeliver function just before the line
bulkdeliver(mlist, msgcopy, msgdata, envsender, failures, conn)
put
code = CODES[recip.lower()]
msgfrom = msgcopy['from']
del msgcopy['from']
msgcopy['From'] = re.sub('@', '+' + code + '@', msgfrom)
to add the +code to the From: address.
--
Mark Sapiro <m...@msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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