diff --git a/api/smtp/session.go b/api/smtp/session.go
index a2eed4f..edb4265 100644
--- a/api/smtp/session.go
+++ b/api/smtp/session.go
@@ -20,6 +20,7 @@ func newSession(rcptsAllowed map[string]bool, dataLimit int64, svc service.Servi
 	return &session{
 		rcptsAllowed: rcptsAllowed,
 		dataLimit:    dataLimit,
+		svc:          svc,
 	}
 }