diff --git a/config/homologa/config.yaml b/config/homologa/config.yaml
index f1aa91e..437a16d 100644
--- a/config/homologa/config.yaml
+++ b/config/homologa/config.yaml
@@ -11,5 +11,6 @@ lists_hostname: listas.homologa.softwarepublico.gov.br
 lists_admin: nayanne.bonifacio@planejamento.gov.br
 relay_hostname: relay.homologa.softwarepublico.gov.br
 relay_ip: 189.9.151.66
+external_outgoing_mail_relay: 189.9.150.53
 alt_ssh_port: 55555
 from_address: noreply@homologa.softwarepublico.gov.br
diff --git a/cookbooks/email/recipes/relay.rb b/cookbooks/email/recipes/relay.rb
index cd74f66..08e2bc6 100644
--- a/cookbooks/email/recipes/relay.rb
+++ b/cookbooks/email/recipes/relay.rb
@@ -46,3 +46,10 @@ execute 'transport:postmap' do
   command "postmap /etc/postfix/transport"
   action :nothing
 end
+
+external_relay = node['config']['external_outgoing_mail_relay']
+if external_relay
+  execute "postconf relayhost=#{external_relay}"
+else
+  execute 'postconf -X relayhost'
+end
--
libgit2 0.21.2