Great Circle Associates Majordomo-Workers
(December 1997)
 

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Subject: restrict_post and Reply-To addresses
From: Nick Perry <nick . perry @ amulation . co . uk>
Date: Wed, 10 Dec 1997 18:14:54 +0000
To: majordomo-workers @ greatcircle . com

It occurs to me that there is something of an anomoly in the way the
zubscription and restrict_post features interact and I'd be interested 
to know what the rationale is behind the operation of each feature.

Basically, if a user sends a zubscribe command without explicitly 
specifying an email address, majordomo will take the Reply-To: address
(if one has been defined) before any From: address.

Restrict_post, however does not check to see if the Reply-To: address is
matched in any of the specified files.

The latter behavior makes perfect sense, after all Reply-To:, by no
means determines who *sent* the mail to the list. However it does
create an anomoly if Reply-To: does not match From:. A user will be
subscribed under their Reply-To: address, but unable to post because
their From: address is different (and it's form may be out of th
user's control - eg, rewritten by the MTA).

It is quite easy to do as I do and tell people to either fix their
headers (where possible) or resubscribe explicitly using their From:
address, however the initial behaviour of the subscribe mechanism does
seem slight odd. 

I haven't looked closely, but presumably subscribing to an 'auto' list
also has issues pertaining to From: and Reply-To: mismatches.

Thoughts please...

Nick


-- 
Nick Perry | Home / Recreation               | Work - AboarD           |
           | LONDON SW1, UK                  | LONDON SW6, UK          |
           | http://www.amulation.co.uk/nick | http://www.aboard.co.uk |
           | nick.perry@amulation.co.uk      | np@aboard.co.uk         |


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