diff --git a/templates/main.cf.j2 b/templates/main.cf.j2
index e3c2983..ba5c027 100644
--- a/templates/main.cf.j2
+++ b/templates/main.cf.j2
@@ -40,7 +40,6 @@ mydestination = {{ inventory_hostname_short }} {{ inventory_hostname }} localhos
 alias_maps = hash:/etc/aliases
 alias_database = hash:/etc/aliases
 
-
 relayhost = {{ postfix.relayhost|d('') }}
 relay_domains = {{ postfix.relay_domains|d([])|join(', ') }}
 relay_transport = {{ postfix.relay_transport|d('smtp') }}
@@ -53,6 +52,8 @@ recipient_delimiter = +
 inet_interfaces = all
 inet_protocols = all
 
+message_size_limit = {{ postfix.message_size_limit|d('20480000') }}
+
 {% if "virtual_transport" in postfix and postfix.virtual_transport == "dovecot" %}
 smtpd_sasl_type = dovecot
 smtpd_sasl_path = private/auth