Re: [Mailman-Users] Configuration Question:Regarding mailfilterbased email addresses

[Mark Sapiro]

Grant Taylor wrote:

On 08/25/09 22:57, Mark Sapiro wrote:

 The list admin based solution is to add per...@example.com or 
 ^person(\+.*)?...@example\.com to accept_these_nonmembers.

I don't know if I would call that a solution so much as I would a (per 
user) work around.


Yes, it is a work-around, not a true solution.


I would be much more interested in a per list option as to whether or 
not to honor (understand and utilize) user+detail addresses.  I would 
consider that to be a true solution.


The OP says the +tag format described in RFC3696
(http://tools.ietf.org/html/rfc3696) allows for this format. I don't
know if RFC 3696 is the intended reference, but I see nothing in that
RFC regarding the semantics of a local part containing a '+' (or a '-'
which is sometimes used for the same purpose.

Both RFC 2821 and it's successor RFC 5321 say

  Consequently, and due to a
  long history of problems when intermediate hosts have attempted to
  optimize transport by modifying them, the local-part MUST be
  interpreted and assigned semantics only by the host specified in the
  domain part of the address.

Thus, I think it is ultimately up to the user to specify what other
local parts are equivalent to that of the delivery address, and it is
not up to Mailman to guess this.

Note that Mailman 3 will make this much easier as it will have a single
user record with the ability to specify multiple addresses.

-- 
Mark Sapiro m...@msapiro.netThe highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan

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Re: [Mailman-Users] Configuration Question:Regarding mailfilterbased email addresses

[Grant Taylor]

On 08/26/09 09:40, Mark Sapiro wrote:
The OP says the +tag format described in RFC3696 
(http://tools.ietf.org/html/rfc3696) allows for this format. I don't 
know if RFC 3696 is the intended reference, but I see nothing in that 
RFC regarding the semantics of a local part containing a '+' (or a 
'-' which is sometimes used for the same purpose.


I see examples of the user+detail in RFC 3696, but like you I don't see 
any reference as to how it is to be interpreted, just that it is allowed.


Thus, I think it is ultimately up to the user to specify what other 
local parts are equivalent to that of the delivery address, and it is 
not up to Mailman to guess this.


I can see how you come to that understanding.  (Further I don't have any 
problems with that understanding.)


The only thing that I see (and experience) is that it would be nice if 
Mailman did something (even if it was non-standard) to support 
user+detail format addresses.  What that /something/ is or should be, I 
have no idea.


Note that Mailman 3 will make this much easier as it will have a 
single user record with the ability to specify multiple addresses.


I think this will fill the bill quite nicely.



Grant. . . .
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