/usr/lib/python2.7/dist-packages/Milter/unsign.py is in python-milter 1.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | # Author: Stuart D. Gathman <stuart@bmsi.com>
# Copyright 2005 Business Management Systems, Inc.
# This code is under the GNU General Public License. See COPYING for details.
# The localpart of SMTP return addresses is often signed. The format
# of the signing is application specific and doesn't concern us -
# except that we wish to extract some sort of fixed string from
# the variable signature which represents the "source" of the message.
def unsign(s):
"""Attempt to unsign localpart and return original email.
No attempt is made to verify the signature.
>>> unsign('SRS0=8Y3CZ=3U=jsconnor.com=bills@bmsi.com')
'bills@jsconnor.com'
"""
# not implemented yet
return s
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