diff --git a/asciinema/compose.yaml b/asciinema/compose.yaml
index e88595d..da1d9f2 100644
--- a/asciinema/compose.yaml
+++ b/asciinema/compose.yaml
@@ -17,8 +17,7 @@ services:
       SMTP_PASSWORD: ${EMAIL_SMTP_PASSWORD}
       SMTP_FROM_ADDRESS: ${EMAIL_FROM}
       SMTP_PORT: 587
-      SMTP_TLS: always
-      SMTP_ALLOWED_TLS_VERSIONS: tlsv1.2,tlsv1.3
+      SMTP_TLS: if_available
       SIGN_UP_DISABLED: ${ASCIINEMA_SIGN_UP_DISABLED:-false}
       DEFAULT_AVATAR: gravatar
     labels: