Tag Archives: postfix

Lets Encrypt and Postfix

Lets Encrypt is an quick & easy way to add SSL to you website.

You can also use Lets Encrypt certificates to help secure your postfix mail server.

SSL SMTP allows mail clients & mail servers to send encrypted data.

If you’re seeing a lot of messages about untrusted TLS connections in your mail log when running postfix like this…

Untrusted TLS connection established to ASPMX.L.GOOGLE.com[172.217.197.27]:25: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)

… there’s a pretty easy fix.