diff --git a/webserver/docker_mail/templates/docker-compose.yml b/webserver/docker_mail/templates/docker-compose.yml
index feb4bdd463c210ac0532a61de8c326aa5d76a4e7..51db61715a8438d2aa56a5019dba6bb907833ea5 100644
--- a/webserver/docker_mail/templates/docker-compose.yml
+++ b/webserver/docker_mail/templates/docker-compose.yml
@@ -48,7 +48,7 @@ services:
       - "traefik.http.routers.{{ servicename }}.tls"
       - "traefik.http.routers.{{ servicename }}.tls.certresolver=letsencrypt"
       - "traefik.http.routers.{{ servicename }}.tls.domains[0].main={{ domain }}"
-      - "traefik.http.routers.{{ servicename }}.tls.domains[0].sans={{ mailserver }}"
+      - "traefik.http.routers.{{ servicename }}.tls.domains[0].sans={{ mailserver }},imap.warpzone.ms,smtp.warpzone.ms"
       - "traefik.http.routers.{{ servicename }}.service={{ servicename }}"
       - "traefik.http.services.{{ servicename }}.loadbalancer.server.port=80"
     networks: