From e7bea1efd0b4c221886cace8a49adbd99f6b1a8b Mon Sep 17 00:00:00 2001
From: bwarsaw
Date: Tue, 9 Oct 2001 23:14:22 +0000
Subject: HasExplicitDest(), hasMatchingHeader(): Pass a failobj of [] to the  
   get_all() call so that even if the field is missing, we get a     valid
 list object.

---
 Mailman/MailList.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Mailman/MailList.py b/Mailman/MailList.py
index 1149ef51d..e975f7414 100644
--- a/Mailman/MailList.py
+++ b/Mailman/MailList.py
@@ -936,7 +936,7 @@ class MailList(MailCommandHandler, HTMLFormatter, Deliverer, ListAdmin,
         # specifically To: Cc: and Resent-to:
         to = []
         for header in ('to', 'cc', 'resent-to', 'resent-cc'):
-            to.extend(getaddresses(msg.get_all(header)))
+            to.extend(getaddresses(msg.get_all(header, [])))
         for fullname, addr in to:
             # It's possible that if the header doesn't have a valid
             # (i.e. RFC822) value, we'll get None for the address.  So skip
@@ -1024,7 +1024,7 @@ bad regexp in bounce_matching_header line: %s
         matches.
         """
         for header, cre, line in self.parse_matching_header_opt():
-            for value in msg.get_all(header):
+            for value in msg.get_all(header, []):
                 if cre.search(value):
                     return line
         return 0
-- 
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