-static int badmsg = 0; /* message has bad semantics */
-static int verbose = 0; /* spell it out */
-static int format = 1; /* format addresses */
-static int mime = 0; /* use MIME-style encapsulations for Bcc */
-static int msgid = 0; /* add msgid */
-static int debug = 0; /* debugging post */
-static int watch = 0; /* watch the delivery process */
-static int whomsw = 0; /* we are whom not post */
-static int checksw = 0; /* whom -check */
+static bool badmsg; /* message has bad semantics */
+static bool verbose; /* spell it out */
+static bool format = true; /* format addresses */
+static bool mime; /* use MIME-style encapsulations for Bcc */
+static bool msgid; /* add msgid */
+static bool debug; /* debugging post */
+static bool watch; /* watch the delivery process */
+static bool whomsw; /* we are whom not post */
+static bool checksw; /* whom -check */