--- mailer.py.orig	2012-10-25 22:39:59.000000000 -0700
+++ mailer.py	2012-10-25 22:49:12.000000000 -0700
@@ -2,7 +2,7 @@
 """
 __docformat__ = 'restructuredtext'
 
-import time, quopri, os, socket, smtplib, re, sys, traceback, email
+import time, quopri, os, socket, smtplib, re, sys, traceback, email, subprocess
 
 from cStringIO import StringIO
 
@@ -265,6 +265,9 @@
 
         if not sender:
             sender = self.config.ADMIN_EMAIL
+
+        sendmail=self.config.SENDMAIL
+
         if self.debug:
             # don't send - just write to a file, use unix from line so
             # that resulting file can be openened in a mailer
@@ -273,6 +276,9 @@
             open(self.debug, 'a').write('%s\nFROM: %s\nTO: %s\n%s\n\n' %
                                         (unixfrm, sender,
                                          ', '.join(to), message))
+        elif sendmail:
+            mailer = subprocess.Popen([sendmail, ', '.join(to)], stdin=subprocess.PIPE)
+            print >>mailer.stdin, message
         else:
             # now try to send the message
             try:
--- configuration.py.orig	2012-10-25 22:40:33.000000000 -0700
+++ configuration.py	2012-10-25 22:26:05.000000000 -0700
@@ -675,6 +675,9 @@
             "This domain is added to those config items if they don't\n"
             "explicitly include a domain.\n"
             "Do not include the '@' symbol."),
+        (Option, "sendmail", NODEFAULT,
+            "SENDMAIL binary to use (optional)",
+            ["SENDMAIL"],),
         (Option, "host", NODEFAULT,
             "SMTP mail host that roundup will use to send mail",
             ["MAILHOST"],),