1 files changed, 48 insertions, 0 deletions

diff --git a/src/mailman/Bouncers/Exchange.py b/src/mailman/Bouncers/Exchange.py
new file mode 100644
index 000000000..cf8beefce
--- /dev/null
+++ b/src/mailman/Bouncers/Exchange.py
@@ -0,0 +1,48 @@
+# Copyright (C) 2002-2009 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 (some) Microsoft Exchange formats."""
+
+import re
+import email.Iterators
+
+scre = re.compile('did not reach the following recipient')
+ecre = re.compile('MSEXCH:')
+a1cre = re.compile('SMTP=(?P<addr>[^;]+); on ')
+a2cre = re.compile('(?P<addr>[^ ]+) on ')
+
+
+
+def process(msg):
+    addrs = {}
+    it = email.Iterators.body_line_iterator(msg)
+    # Find the start line
+    for line in it:
+        if scre.search(line):
+            break
+    else:
+        return []
+    # Search each line until we hit the end line
+    for line in it:
+        if ecre.search(line):
+            break
+        mo = a1cre.search(line)
+        if not mo:
+            mo = a2cre.search(line)
+        if mo:
+            addrs[mo.group('addr')] = 1
+    return addrs.keys()