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.Continue reading
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[18.104.22.168]:25: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
… there’s a pretty easy fix.Continue reading