--- Makefile.in.ORIG	Thu Jan 29 22:26:50 1998
+++ Makefile.in	Thu Jan 29 22:30:35 1998
@@ -11,10 +11,10 @@
 
 
 #DEFINES = $(HASSTRDUP) $(HASSTRERROR) $(DEFAULT_DOMAIN)
-DEFINES = @DEFS@
+DEFINES = @DEFS@ -DDEFAULT_DOMAIN=1 -DPIPECOMMAND='"/usr/sbin/sendmail -bs %s"'
 LIBS = @LIBS@
 
-CFLAGS = $(DEFINES)
+CFLAGS = -O2 -Wall $(DEFINES)
 
 FILES = bulk_mailer.README INSTALL bulk_mailer.c patchlevel.h Makefile