diff --git a/defaults/main.yml b/defaults/main.yml
index 4ed4b8c..ff4eeb2 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -103,7 +103,7 @@ dovecot_quota_grace: 10%
 
 # submission
 dovecot_submission_enable: yes
-dovecot_submission_host: "{{ dovecot_image }}.{{ docker_network }}"
+dovecot_submission_host: "{{ dovecot_container }}.{{ docker_network }}"
 dovecot_submission_relay_host: postfix
 dovecot_submission_relay_port: 25
 dovecot_submission_relay_trusted: yes