Postfix - Auth Dovecot Backend
main.cf file Postfix related parametes: smtpd_sasl_authenticated_header = yes smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth dovecot.conf file Dovecot related parameters: auth default { mechanisms = plain login […removed irrelevance parameters…] socket listen { client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } }