diff --git a/Apache-Installer.sh b/Apache-Installer.sh
index 38319b4..cc7a4eb 100644
--- a/Apache-Installer.sh
+++ b/Apache-Installer.sh
@@ -94,12 +94,12 @@ a2disconf phpmyadmin
 #    Postfix    #
 ##-------------##
 
-debconf-set-selections <<< "postfix postfix/mailname string $domain"
+debconf-set-selections <<< "postfix postfix/mailname string $hostname"
 debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'"
 apt install -y mailutils
 sed -i 's/#inet_interfaces = all/inet_interfaces = loopback-only/g' /etc/postfix/main.cf
 sed -i 's/mydestination/#mydestination/g' /etc/postfix/main.cf
-sed -i 's/relayhost =/mydestination = '$domain', localhost.'$domain', '$domain'/g' /etc/postfix/main.cf
+sed -i 's/relayhost =/mydestination = '$hostname', localhost.'$hostname', '$hostname'/g' /etc/postfix/main.cf
 cat <<EOF > /etc/aliases
 # See man 5 aliases for format
 postmaster:    root