[Bug 1430559] Re: Identical Addresses treated differently causes redundancy in address list

[Mark Sapiro]

Both RFC 2821 and RFC 5321 contain the following statement:

The  standard mailbox naming convention is defined to be  "local-
part at domain"; contemporary usage permits a much broader set of
applications than simple "user names".  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, Mailman not being the host specified in the  domain part of the
address MUST assume that different local-parts are different addresses
regardless of the widespread use of + as a delimiter indicating the
mailbox name ends here.

** Changed in: mailman
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1430559

Title:
  Identical Addresses treated differently causes redundancy in address
  list

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