diff --git a/roles/prometheus/templates/blackbox.yml b/roles/prometheus/templates/blackbox.yml
index dbfc0da..2757785 100644
--- a/roles/prometheus/templates/blackbox.yml
+++ b/roles/prometheus/templates/blackbox.yml
@@ -117,7 +117,7 @@ modules:
         - expect: "^250 .*$"
         - send: "QUIT"
 
-  smtp_submission:
+  smtp_starttls:
     prober: tcp
     timeout: 2s
     tcp:
@@ -145,20 +145,6 @@ modules:
         - expect: "^250 .*$"
         - send: "QUIT"
 
-  submission_starttls:
-    prober: tcp
-    timeout: 2s
-    tcp:
-      {% if blackbox_prefer_ipv4 -%}
-      preferred_ip_protocol: ip4
-      {% endif -%}
-      query_response:
-        - starttls: true
-        - expect: "^220 .*SMTP .*$"
-        - send: "HELO {{ blackbox_smtp_name }}"
-        - expect: "^250 .*$"
-        - send: "QUIT"
-
   imap:
     prober: tcp
     timeout: 2s