diff --git a/roles/mail_server/templates/main.cf.j2 b/roles/mail_server/templates/main.cf.j2
index 435e57973f8d295ca0272aca625dec262e63149f..6315a8f8237db6f6d4819253f2f068fd1ea73cb5 100644
--- a/roles/mail_server/templates/main.cf.j2
+++ b/roles/mail_server/templates/main.cf.j2
@@ -52,13 +52,19 @@ dovecot_destination_recipient_limit = 1
 smtpd_sasl_type = dovecot
 smtpd_sasl_path = private/auth
 smtpd_sasl_auth_enable = yes
+
+# TLS configuration.
 smtpd_tls_security_level = may
 smtpd_tls_auth_only = yes
 smtpd_tls_cert_file = {{ smtp_tls_certificate }}
 smtpd_tls_key_file = {{ smtp_tls_key }}
+
+# Recipients restricting.
 smtpd_recipient_restrictions = permit_mynetworks
   permit_sasl_authenticated
   {% for rbl in smtp_rbl -%}
   reject_rbl {{ rbl }}
   {% endfor -%}
   reject_unauth_destination
+smtpd_milters = unix:/var/run/clamav/clamav-milter.ctl
+non_smtpd_milters = unix:/var/run/clamav/clamav-milter.ctl