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# Copyright (C) 1998-2018 by the Free Software Foundation, Inc.
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
"""Something which claims
X-Mailer: <SMTP32 vXXXXXX>
What the heck is this thing? Here's a recent host:
% telnet 207.51.255.218 smtp
Trying 207.51.255.218...
Connected to 207.51.255.218.
Escape character is '^]'.
220 X1 NT-ESMTP Server 208.24.118.205 (IMail 6.00 45595-15)
"""
import re
import email
ecre = re.compile('original message follows', re.IGNORECASE)
acre = re.compile(r'''
( # several different prefixes
user\ mailbox[^:]*: # have been spotted in the
|delivery\ failed[^:]*: # wild...
|unknown\ user[^:]*:
|undeliverable\ +to
|delivery\ userid[^:]*:
)
\s* # space separator
(?P<addr>[^\s]*) # and finally, the address
''', re.IGNORECASE | re.VERBOSE)
def process(msg):
mailer = msg.get('x-mailer', '')
if not mailer.startswith('<SMTP32 v'):
return
addrs = {}
for line in email.Iterators.body_line_iterator(msg):
if ecre.search(line):
break
mo = acre.search(line)
if mo:
addrs[mo.group('addr')] = 1
return addrs.keys()
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