--- mutt-1.5.9/init.h
+++ mutt-1.5.9/init.h
@@ -2305,6 +2305,13 @@
   ** .pp
   ** Also see the ``$$force_name'' variable.
   */
+  { "send_group_reply_to",	DT_BOOL, R_NONE, OPTSENDGROUPREPLYTO, 0 },
+  /*
+  ** .pp
+  ** This variable controls how group replies are done.
+  ** When set, all recepients listet in "To:" are set in the
+  ** "To:" header again, else in the "CC", which is the default.
+  */
   { "score", 		DT_BOOL, R_NONE, OPTSCORE, 1 },
   /*
   ** .pp
--- mutt-1.5.9/mutt.h
+++ mutt-1.5.9/mutt.h
@@ -419,6 +419,7 @@
   OPTSAVEADDRESS,
   OPTSAVEEMPTY,
   OPTSAVENAME,
+  OPTSENDGROUPREPLYTO,
   OPTSCORE,
   OPTSIGDASHES,
   OPTSIGONTOP,
--- mutt-1.5.9/send.c
+++ mutt-1.5.9/send.c
@@ -545,8 +545,16 @@
     if ((flags & SENDGROUPREPLY) && (!in->mail_followup_to || hmfupto != M_YES))
     {
       /* if(!mutt_addr_is_user(in->to)) */
+      if (option (OPTSENDGROUPREPLYTO))
+      {
+        rfc822_append (&out->to, in->to);
+        rfc822_append (&out->cc, in->cc);
+      } 
+      else 
+      {
       rfc822_append (&out->cc, in->to);
       rfc822_append (&out->cc, in->cc);
+      }
     }
   }
   return 0;