Removed mucStatus as the return value is not the status code (see https://github.com/mattn/go-xmpp/issues/103 ).

go-sendxmpp.go

@@ -302,15 +302,10 @@ func main() {
 		for _, recipient := range recipients {
 
 			// Join the MUC.
-			mucStatus, err := client.JoinMUCNoHistory(recipient, *flagResource)
+			_, err := client.JoinMUCNoHistory(recipient, *flagResource)
 			if err != nil {
 				log.Fatal(err)
 			}
-
-			// Exit if Status is > 300, see https://xmpp.org/registrar/mucstatus.html
-			if mucStatus > 300 {
-				log.Fatal("Couldn't join MUC. Status:", mucStatus)
-			}
 		}
 
 		// Send in endless loop (for usage with e.g. "tail -f").