On Tue, Jun 03, 2008 at 02:22:14PM -0700, Todd A. Jacobs wrote:

>   - Is TMDA issuing challenges as bounces?

Sort of. Apparently TMDA is simply setting the return envelope to "<>"
by default in Defaults.py. Because this isn't part of an active SMTP
transaction, it isn't technically a bounce, and so Charter chooses to
view it as an attempted relay.

>   - Is it possible to reconfigure TMDA to issue challenges as reply
>     messages rather than bounces?

It sure is. It's not an obvious feature, but .tmda/config can override
the default for BOUNCE_ENV_SENDER, which solves the problem nicely.
Apparently, it's the presence of the null envelope that causes the mail
nazis at Charter to bounce the challenges.

So, adding a line like:

    BOUNCE_ENV_SENDER = '[EMAIL PROTECTED]'

to .tmda/config solves the problem neatly, without any patches to the
source code. Each message now has a valid envelope sender, which you can
then filter away or set up your MTA to bounce, as you please.

-- 
"Oh, look: rocks!"
        -- Doctor Who, "Destiny of the Daleks"
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