diff --git a/etc/dovecot/conf.d/10-auth.conf b/etc/dovecot/conf.d/10-auth.conf
index 187b262..eebce4f 100644
--- a/etc/dovecot/conf.d/10-auth.conf
+++ b/etc/dovecot/conf.d/10-auth.conf
@@ -126,3 +126,10 @@ auth_mechanisms = plain login
 #!include auth-checkpassword.conf.ext
 #!include auth-vpopmail.conf.ext
 #!include auth-static.conf.ext
+
+# disable auth penalty as everyone connects from the same IP
+service anvil {
+  unix_listener anvil-auth-penalty {
+    mode = 0
+  }
+}