diff -Naur slrn-0.9.7.2.orig/src/misc.h slrn-0.9.7.2/src/misc.h
--- slrn-0.9.7.2.orig/src/misc.h	Sat Jul 21 23:18:45 2001
+++ slrn-0.9.7.2/src/misc.h	Thu Oct 18 10:33:29 2001
@@ -69,6 +69,7 @@
    char *hostname;
    char *replyto;
    char *org;
+   char *user_agent;
    char *followup_string;
    char *reply_string;
    char *signature;
diff -Naur slrn-0.9.7.2.orig/src/post.c slrn-0.9.7.2/src/post.c
--- slrn-0.9.7.2.orig/src/post.c	Mon Aug 20 18:12:18 2001
+++ slrn-0.9.7.2/src/post.c	Thu Oct 18 10:33:34 2001
@@ -186,6 +186,20 @@
      Slrn_Post_Obj->po_puts (buf);
 }
 
+int file_has_sigdashes (FILE *file)
+{
+   int ret = 0;
+   char buf [256];
+
+   while (NULL != fgets (buf, sizeof(buf), file))
+   {
+       if (0 != strcmp (buf, "-- \n")) ret = 1;
+   }
+   rewind (file);
+
+   return ret;
+}
+
 void slrn_add_signature (FILE *fp)
 {
    FILE *sfp;
@@ -209,12 +223,17 @@
  	  fputs ("\n", fp);
 	
 	/* Apparantly some RFC suggests the -- \n. */
-        fputs ("\n-- \n", fp);
+        if (! file_has_sigdashes (sfp) )
+            fputs ("\n-- \n", fp);
 	
 	/* If signature file already has -- \n, do not add it. */
-	if ((NULL != fgets (buf, sizeof (buf), sfp))
-	    && (0 != strcmp (buf, "-- \n")))
-	  fputs (buf, fp);
+
+        /* It is already tested before (enable the sig. file to have
+         * something before the sigdashes
+         */
+/* 	if ((NULL != fgets (buf, sizeof (buf), sfp)) */
+/* 	    && (0 != strcmp (buf, "-- \n"))) */
+/* 	  fputs (buf, fp); */
 	  
         while (NULL != fgets (buf, sizeof(buf), sfp))
 	  {
@@ -751,8 +770,14 @@
 		    slrn_mime_add_headers (outfp);
 #endif
 		  system_os_name = slrn_get_os_name ();
-		  fprintf (outfp, "User-Agent: slrn/%s (%s)\n", Slrn_Version,
-			   system_os_name);
+                  if ( (NULL != Slrn_User_Info.user_agent) &&
+                       (0 != Slrn_User_Info.user_agent[0])) {
+                      fprintf (outfp, "User-Agent: %s\n",
+                               Slrn_User_Info.user_agent);
+                  } else {
+                      fprintf (outfp, "User-Agent: slrn/%s (%s)\n",
+                               Slrn_Version, system_os_name);
+                  }
 		  header = 0;
 	       }
 	     else if (is_empty_header (line))
@@ -1137,8 +1162,16 @@
 		  if (Slrn_Use_Mime & MIME_DISPLAY)
 		    slrn_mime_add_headers (0);   /* 0 --> Slrn_Post_Obj->po_puts */
 #endif
-		  Slrn_Post_Obj->po_printf ("User-Agent: slrn/%s (%s)\n\n", 
-					    Slrn_Version, system_os_name);
+                  if ( (NULL != Slrn_User_Info.user_agent) &&
+                       (0 != Slrn_User_Info.user_agent[0])) {
+                      Slrn_Post_Obj->po_printf ("User-Agent: %s\n\n",
+                                                Slrn_User_Info.user_agent);
+                  } else {
+                      Slrn_Post_Obj->po_printf ("User-Agent: slrn/%s (%s)\n\n",
+                                                Slrn_Version, system_os_name);
+                  }
+
+		  
 		  header = 0;
 #if SLRN_HAS_MIME
 		  if (Slrn_Use_Mime & MIME_DISPLAY) fp = slrn_mime_encode (fp);
diff -Naur slrn-0.9.7.2.orig/src/startup.c slrn-0.9.7.2/src/startup.c
--- slrn-0.9.7.2.orig/src/startup.c	Thu Aug 16 11:45:54 2001
+++ slrn-0.9.7.2/src/startup.c	Thu Oct 18 10:33:38 2001
@@ -637,6 +637,7 @@
      {"quote_string", &Slrn_Quote_String},
      {"replyto", &Slrn_User_Info.replyto},
      {"organization", &Slrn_User_Info.org},
+     {"user_agent", &Slrn_User_Info.user_agent},
      {"followup", &Slrn_User_Info.followup_string}, /* FIXME: obsolete */
      {"followup_string", &Slrn_User_Info.followup_string},
      {"reply_string", &Slrn_User_Info.reply_string},
@@ -1178,6 +1179,7 @@
      {"scorefile", &Slrn_Score_File, 0},
      {"replyto", &Slrn_User_Info.replyto, 0},
      {"organization", &Slrn_User_Info.org, 0},
+     {"user_agent", &Slrn_User_Info.user_agent, 0},
      {"followup", &Slrn_User_Info.followup_string, 0},
      {"signature", &Slrn_User_Info.signature, 0},
      {"cc_followup_string", &Slrn_CC_Followup_Message, 0},