diff --git a/templates/main.cf.j2 b/templates/main.cf.j2
index 1cadd3d..0d39398 100644
--- a/templates/main.cf.j2
+++ b/templates/main.cf.j2
@@ -175,3 +175,10 @@ virtual_transport =
 {% if postfix_with_dovecot_lmtp %}
   lmtp:unix:private/dovecot-lmtp,
 {% endif %}
+
+
+{% if postfix_with_sympa %}
+### sympa
+sympa_destination_recipient_limit = 1
+sympabounce_destination_recipient_limit = 1
+{% endif %}