[Mailman-Users] problem with subscription confirmation string

Mark Sapiro mark at msapiro.net
Thu Jun 5 04:53:54 CEST 2008

Christopher Adams wrote:
>Yes, that is the exact string that is in the To: header of the reply.
>On Wed, Jun 4, 2008 at 9:01 AM, Mark Sapiro <mark at msapiro.net> wrote:
>> Christopher Adams" <adamsca at gmail.com>
>>    Date: Wed, 4 Jun 2008 08:31:21 -0700
>>     To: mailman-users at python.org
>> >I have previously had problems with this and since moving to a new server,
>> >it doesn't seem to work quite right.
>> >
>> >I use Postfix. In my Postfix main.cf, I have a line:
>> >
>> >recipient_delimiter = +
>> >
>> >In mm_cfg.py, I have this line:
>> >
>> >
>> >
>> >If I send a message to test7-request and add the word 'subscribe', I get a
>> >message back like this:
>> >
>> >From: test7-bounces at listsmart.osl.state.or.us; on behalf of;
>> >
>> test7-confirm+38d558c77e170cac9b8412a0db13b13e0560cc93 at listsmart.osl.state.or.us<test7-confirm%2B38d558c77e170cac9b8412a0db13b13e0560cc93 at listsmart.osl.state.or.us>
>> <
>> test7-confirm%2B38d558c77e170cac9b8412a0db13b13e0560cc93 at listsmart.osl.state.or.us<test7-confirm%252B38d558c77e170cac9b8412a0db13b13e0560cc93 at listsmart.osl.state.or.us>
>> >

It is unclear to me what you are seeing in these messages. Your MUA is
manipulating and adding stuff, so it is not clear what you saw in my
reply. The To: header in your confirmation reply should be


except where I wrote -at-, there should be an actual at-sign.

As Stephen indicates in another reply, if it actually looks like


VERP_CONFIRM_REGEXP will not be able to parse the token becaus it will
see the '<' and look for a following '+' which it won't find because
it is represented as %2B.

You could try putting


(note that should be all on one line) in mm_cfg.py. This (tested only
on your one example) regexp will accept either a '+' or '%2B' as the

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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