Connection
- Host:
smtp.targetsmtp.it - Ports: 25 (server-to-server), 465 (SMTPS), 587 (submission, recommended), 2525 (alternative if 587 is blocked)
- TLS: STARTTLS required on 587/25, implicit TLS on 465. Minimum TLS 1.2.
- Authentication: SASL PLAIN / LOGIN over an encrypted connection.