The mailing list for listmasters using Sympa

[IKEDA Soji <address@concealed>]

Hi all,

This looping seems starting as of 6.2.13.  A quick fix is adding a line

  From: [%conf.email%]-request@[%conf.host%]

at the beginning of the file

  mail_tt2/delivery_status_notification.tt2

so that <sympa@myhost> address will not be used by Sympa to respond to errors 
sent by another Sympa.


Regards,

-- Soji

2016/03/24 2:13、Matthew Caron (via sympa-users Mailing List) 
<address@concealed> のメッセージ:

> Hello all,
> 
> I'm having an interesting problem which I thought I'd share. Setup:
> 
> 1. I have address@concealed as the email address which goes to queue.
> (Which I will call the 'command address'. I am not sure what the
> developers call it.) As in, this is what my exim aliases line looks like:
> 
> sympa:          "| /opt/sympa/bin/queue sympa"
> 
> 2. If some not nice person sends an email with a spoofed from, being
> address@concealed to address@concealed, the mailing list sits there
> talking to itself, replying back and forth that there are no commands in
> the email, taking longer and longer to parse the email each time and
> eventually pegging the CPU, until I break the chain by setting the alias
> to be my email address and letting the failure come to me.
> 
> I'd like to avoid this, but, in looking at the code (specifically
> src/lib/Sympa/Spindle/ProcessIncoming.pm) it seems that the
> loop_prevention stuff (specifically loop_prevention_regex) is only
> applied in the case of the email going to a real mailing list, and not
> to the control mailing list.
> 
> I also note that, on replies from this email address, the X-Loop header
> is not set, also because it's not on a mailing list (at least, that's
> what it looks like happens in DoForward to me).
> 
> Before I start hacking on the code, I wanted to ask if anyone had any
> ideas. It feels like this is a solved problem and I'm missing something
> very obvious, but after a couple of hours of looking through docs, I
> don't have any solution.
> 
> Thanks in advance.
> 
> 
> 
> -- 
> "When a self-governing people confer upon their government the power
> to take money from some and give it to others, the process will not
> stop until the last bone of the last taxpayer is picked bare."
>                       -- Howard E. Kershner (Kershner's First Law)
> PGP Key: http://www.mattcaron.net/pgp_key.txt
> ~~ Matt Caron ~~
>