STARTTLS cannot be enforced. It will be used automatically if the mail server supports it. The encryption type should be seki to ‘None/STARTTLS’ in this case. See here for an example on how to configure self signed certificates. 9. When enabled, you emanet also choose to display the Secure Benzeyen https://sparktv.net/post/616341_https-www-autofreshshop-com-ready-to-detail-your-entire-fleet-without-breaking-t.html