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diff --git a/src/mailman/Bouncers/SimpleWarning.py b/src/mailman/Bouncers/SimpleWarning.py
new file mode 100644
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+++ b/src/mailman/Bouncers/SimpleWarning.py
@@ -0,0 +1,62 @@
+# Copyright (C) 2001-2009 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/>.
+
+"""Recognizes simple heuristically delimited warnings."""
+
+from mailman.Bouncers.BouncerAPI import Stop
+from mailman.Bouncers.SimpleMatch import _c
+from mailman.Bouncers.SimpleMatch import process as _process
+
+
+
+# This is a list of tuples of the form
+#
+#     (start cre, end cre, address cre)
+#
+# where `cre' means compiled regular expression, start is the line just before
+# the bouncing address block, end is the line just after the bouncing address
+# block, and address cre is the regexp that will recognize the addresses.  It
+# must have a group called `addr' which will contain exactly and only the
+# address that bounced.
+patterns = [
+    # pop3.pta.lia.net
+    (_c('The address to which the message has not yet been delivered is'),
+     _c('No action is required on your part'),
+     _c(r'\s*(?P<addr>\S+@\S+)\s*')),
+    # This is from MessageSwitch.  It is a kludge because the text that
+    # identifies it as a warning only comes after the address.  We can't
+    # use ecre, because it really isn't significant, so we fake it.  Once
+    # we see the start, we know it's a warning, and we're going to return
+    # Stop anyway, so we match anything for the address and end.
+    (_c('This is just a warning, you do not need to take any action'),
+     _c('.+'),
+     _c('(?P<addr>.+)')),
+    # Symantec_AntiVirus_for_SMTP_Gateways - see comments for MessageSwitch
+    (_c('Delivery attempts will continue to be made'),
+     _c('.+'),
+     _c('(?P<addr>.+)')),
+    # Next one goes here...
+    ]
+
+
+
+def process(msg):
+    if _process(msg, patterns):
+        # It's a recognized warning so stop now
+        return Stop
+    else:
+        return []