diff --git a/swarm/mailserver.yml b/swarm/mailserver.yml
index b41a599..ea866eb 100644
--- a/swarm/mailserver.yml
+++ b/swarm/mailserver.yml
@@ -6,7 +6,6 @@ services:
       # - /var/data/docker-mailserver/maildata:/var/mail
       # - /var/data/docker-mailserver/mailstate:/var/mail-state
       # - /var/data/docker-mailserver/config:/tmp/docker-mailserver
-      - traefik-public-certificates:/certificates
       - /var/data/config/acme.json:/etc/letsencrypt/acme.json:ro
     ports:
       - target: 25