diff --git a/kanboard.sh b/kanboard.sh
index 4474085..c60f8f9 100755
--- a/kanboard.sh
+++ b/kanboard.sh
@@ -3,6 +3,7 @@
 SOURCE_DIR=$(realpath $(dirname "${0}"))/kanboard
 
 # Check prerequisites
+docker image ls | grep -q postfix || $(realpath $(dirname "${0}"))/postfix.sh
 docker image ls | grep -q postgres || $(realpath $(dirname "${0}"))/postgres.sh
 
 # Build Docker container
diff --git a/kanboard/etc/init.d/kanboard b/kanboard/etc/init.d/kanboard
index 818d25c..6ca0c2c 100755
--- a/kanboard/etc/init.d/kanboard
+++ b/kanboard/etc/init.d/kanboard
@@ -4,7 +4,7 @@ description="KanBoard docker container"
 
 depend() {
 	need docker net
-	use dns logger netmount
+	use dns logger netmount postfix
 	after postgres
 }
 
@@ -12,6 +12,7 @@ start() {
 	/usr/bin/docker run -d --rm \
 	--name kanboard \
 	-h kanboard \
+	--link postfix \
 	--link postgres \
 	-p 127.0.0.1:8009:8009 \
 	-v /srv/kanboard/data:/srv/kanboard/data/files \
diff --git a/kanboard/srv/kanboard/conf/config.php b/kanboard/srv/kanboard/conf/config.php
index 59eae1d..5ef0d64 100644
--- a/kanboard/srv/kanboard/conf/config.php
+++ b/kanboard/srv/kanboard/conf/config.php
@@ -41,10 +41,10 @@ define('MAIL_CONFIGURATION', true);
 define('MAIL_FROM', 'kanboard@spotter.ngo');
 
 // Mail transport available: "smtp", "sendmail", "mail" (PHP mail function), "postmark", "mailgun", "sendgrid"
-define('MAIL_TRANSPORT', 'sendmail');
+define('MAIL_TRANSPORT', 'smtp');
 
 // SMTP configuration to use when the "smtp" transport is chosen
-define('MAIL_SMTP_HOSTNAME', '');
+define('MAIL_SMTP_HOSTNAME', 'postfix');
 define('MAIL_SMTP_PORT', 25);
 define('MAIL_SMTP_USERNAME', '');
 define('MAIL_SMTP_PASSWORD', '');