diff -r eab6243607cb -r 5443cb9b550a mailman/mailman-sendmail.m4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mailman/mailman-sendmail.m4	Wed Dec 17 15:02:08 2008 +0100
@@ -0,0 +1,16 @@
+dnl
+dnl mailman.m4: Mailman specific local mailer
+dnl
+
+MAILER_DEFINITIONS
+
+##  Special flags! See:
+##  http://www.sendmail.org/~ca/email/doc8.10/op-sh-5.html#sh-5.4 Note
+##  especially the absence of the "m" and "n" flags. THIS IS IMPORTANT:
+##  mailman handler assumes this behavior to avoid having to know too
+##  much about address parsing and other RFC-2822 mail details.
+
+Mmailman,	P=@l_prefix@/libexec/mailman/mail/mailman-sendmail, F=rDFMhlqSu, U=@l_nusr@:@l_ngrp@,
+		S=EnvFromL, R=EnvToL/HdrToL,
+		A=mailman-sendmail $h $u
+