[Solution] - Error: LOGIN authentication failure [SMTP: STARTTLS failed (code: 220, response: ready for tls)]
I was remodeling my e-mail infrastructure and I ran into an issue about my PfSense TLS emailing.I had this error : My configuration looks nice PfSense isn't that good for providing email logs, so I decided to go deeper with a packet analysis. In Diagnotics => Packet Capture