1 files changed, 0 insertions, 102 deletions

diff --git a/src/mailman/bouncers/dsn.py b/src/mailman/bouncers/dsn.py
deleted file mode 100644
index c9d7803ee..000000000
--- a/src/mailman/bouncers/dsn.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# Copyright (C) 1998-2011 by the Free Software Foundation, Inc.
-#
-# This file is part of GNU Mailman.
-#
-# GNU Mailman is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free
-# Software Foundation, either version 3 of the License, or (at your option)
-# any later version.
-#
-# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
-
-"""Parse RFC 3464 (i.e. DSN) bounce formats.
-
-RFC 3464 obsoletes 1894 which was the old DSN standard.  This module has not
-been audited for differences between the two.
-"""
-
-from __future__ import absolute_import, unicode_literals
-
-__metaclass__ = type
-__all__ = [
-    'DSN',
-    ]
-
-
-from email.iterators import typed_subpart_iterator
-from email.utils import parseaddr
-from zope.interface import implements
-
-from mailman.interfaces.bounce import IBounceDetector, Stop
-
-
-
-class DSN:
-    """Parse RFC 3464 (i.e. DSN) bounce formats."""
-
-    implements(IBounceDetector)
-
-    def process(self, msg):
-        """See `IBounceDetector`."""
-        # Iterate over each message/delivery-status subpart.
-        failed_addresses = []
-        delayed_addresses = []
-        for part in typed_subpart_iterator(msg, 'message', 'delivery-status'):
-            if not part.is_multipart():
-                # Huh?
-                continue
-            # Each message/delivery-status contains a list of Message objects
-            # which are the header blocks.  Iterate over those too.
-            for msgblock in part.get_payload():
-                address_set = None
-                # We try to dig out the Original-Recipient (which is optional)
-                # and Final-Recipient (which is mandatory, but may not exactly
-                # match an address on our list).  Some MTA's also use
-                # X-Actual-Recipient as a synonym for Original-Recipient, but
-                # some apparently use that for other purposes :(
-                #
-                # Also grok out Action so we can do something with that too.
-                action = msgblock.get('action', '').lower()
-                # Some MTAs have been observed that put comments on the action.
-                if action.startswith('delayed'):
-                    address_set = delayed_addresses
-                elif action.startswith('fail'):
-                    address_set = failed_addresses
-                else:
-                    # Some non-permanent failure, so ignore this block.
-                    continue
-                params = []
-                foundp = False
-                for header in ('original-recipient', 'final-recipient'):
-                    for k, v in msgblock.get_params([], header):
-                        if k.lower() == 'rfc822':
-                            foundp = True
-                        else:
-                            params.append(k)
-                    if foundp:
-                        # Note that params should already be unquoted.
-                        address_set.extend(params)
-                        break
-                    else:
-                        # MAS: This is a kludge, but
-                        # SMTP-GATEWAY01.intra.home.dk has a final-recipient
-                        # with an angle-addr and no address-type parameter at
-                        # all. Non-compliant, but ...
-                        for param in params:
-                            if param.startswith('<') and param.endswith('>'):
-                                address_set.append(param[1:-1])
-        # There may be both delayed and failed addresses.  If there are any
-        # failed addresses, return those, otherwise just stop processing.
-        if len(failed_addresses) == 0:
-            if len(delayed_addresses) == 0:
-                return set()
-            else:
-                return Stop
-        return set(parseaddr(address)[1] for address in failed_addresses
-                   if address is not None)