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Strip BATV-signatures out of envelope sender address

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This commit is contained in:
Dominik Chilla 2019-11-20 00:56:59 +01:00
parent f7ed47e87a
commit 4e3f6f528f
1 changed files with 3 additions and 0 deletions
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3
app/ldap-acl-milter.py
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@ -100,6 +100,9 @@ class LdapAclMilter(Milter.Base):
logging.error(self.mconn_id + "/FROM sasl_user " + traceback.format_exc())
mailfrom = mailfrom.replace("<","")
mailfrom = mailfrom.replace(">","")
# BATV (https://tools.ietf.org/html/draft-levine-smtp-batv-01)
# Strip out Simple Private Signature (PRVS)
mailfrom = re.sub(r"^prvs=.{10}=", '', mailfrom)
self.env_from = mailfrom
m = g_re_domain.match(self.env_from)
if m == None: