smtp_encryptionSMTP encryption: starttls/tls for port 587 (e.g. Brevo), ssl for port 465 SMTPS, none for plain SMTP
emailConfigInterface::SMTP_ENCRYPTIONrequired|string|in:starttls,tls,ssl,nonestarttlsOptions: starttls, tls, ssl, none
featherpanel saas getsetting smtp_encryption
featherpanel saas setsetting smtp_encryption "<value>"