[Mailman-Users] Possibly OT: VERP to plussed addresses

Mark Sapiro mark at msapiro.net
Mon Mar 1 06:34:22 CET 2010

On 2/28/2010 9:11 PM, Stefan Foerster wrote:
> I have noticed that Mailman seems to be capable to correctly parse
> bounces that come from a plussed address. Example: I'm subscribed to
> this list with
> cite+mailman-users at example.net
> so the sender address looks like this:
> mailman-users-bounces+cite+mailman-users=example.net at python.org
> While it's very nice that this is working - _why_ does it work? Does
> Mailman simply start at the leftmost "+"?

The short answer is yes. For the long answer, see the definitions of
VERP_FORMAT and VERP_REGEXP in Defaults.py.

> Oh, and BTW: Happy "1st of a month", python.org listmasters! Enjoy your
> bounces ;-)

And a Happy Mailman Day to you too ;).

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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