The .replace in getheader would fail for absent headers (that return None).

Author: Jean Jordaan

roundup/mailgw.py

@@ -73,7 +73,7 @@ class node. Any parts of other types are each stored in separate files
 an exception, the original message is bounced back to the sender with the
 explanatory message given in the exception. 
 
-$Id: mailgw.py,v 1.125 2003-06-24 12:39:20 neaj Exp $
+$Id: mailgw.py,v 1.126 2003-06-25 08:02:51 neaj Exp $
 '''
 
 import string, re, os, mimetools, cStringIO, smtplib, socket, binascii, quopri
@@ -186,7 +186,8 @@ def getPart(self):
 
     def getheader(self, name, default=None):
         hdr = mimetools.Message.getheader(self, name, default)
-        hdr = hdr.replace('\n','') # Inserted by rfc822.readheaders
+        if hdr:
+            hdr = hdr.replace('\n','') # Inserted by rfc822.readheaders
         return rfc2822.decode_header(hdr)
 
 class MailGW: