diff --git a/cmd/inbound/inbound.go b/cmd/inbound/inbound.go
index 7cce17d..2154025 100644
--- a/cmd/inbound/inbound.go
+++ b/cmd/inbound/inbound.go
@@ -24,6 +24,7 @@ import (
 var (
 	listenPort int
 	healthPort int
+	rspamAddr string
 
 	enableTLS bool
 )
@@ -34,6 +35,7 @@ func init() {
 	flag.IntVar(&listenPort, "smtp", 2525, "port on which to listen for incoming emails")
 	flag.IntVar(&listenPort, "smtps", 2526, "port on which to listen for incoming secure emails")
 	flag.IntVar(&healthPort, "health", 8080, "port on which to listen for health checks")
+	flag.StringVar(&rspamAddr, "rspamd", "rspam:11332", "address on which rspamd may be found")
 }
 
 func main() {
@@ -90,7 +92,7 @@ func main() {
 		AllowedDomains: allowedDomains,
 		Log:            log,
 		LMTPAddress:    os.Getenv("LMTP_ADDRESS"),
-		RSpam:          milter.NewDefaultClient("tcp", "rspamd:11334"),
+		RSpam:          milter.NewDefaultClient("tcp", rspamAddr),
 		OverallLimiter: rate.NewLimiter(rate.Limit(10), 20),
 	}