Increase keepalive timeout. Add reconnection delay.

outbound/errors.go

@@ -6,6 +6,7 @@ import "fmt"
 var (
 	// Config errors
 	InvalidKeepaliveTimeout = errors.New("keepalive timeout cannot be negative")
+	InvalidReconnectDelay   = errors.New("reconnect delay cannot be negative")
 	InvalidMaxQueueSize     = errors.New("maximum queue size cannot be negative")
 	InvalidBufferSize       = errors.New("buffer size must be greater than zero")