Mar  9 10:59:32 mail postfix/smtpd[18315]: connect from localhost[::1]
Mar  9 10:59:32 mail postfix/smtpd[18315]: warning: SASL: Connect to private/auth-client failed: Connection refused
Mar  9 10:59:32 mail postfix/smtpd[18315]: fatal: no SASL authentication mechanisms
Mar  9 10:59:33 mail postfix/master[1324]: warning: process /usr/libexec/postfix/smtpd pid 18315 exit status 1
Mar  9 10:59:33 mail postfix/master[1324]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling


Dovecot.conf

protocols=imap 
disable_plaintext_auth = no
ssl = no
auth_verbose = yes
login_greeting = Dovecot Available

#myail_location=maildir:/home/vmail/%d/%n/Maildir
mail_location=maildir:/var/vmail/%d/%n/Maildir
mail_privileged_group = mail

#auth_mechanisms=plain login

passdb {
    driver = sql
    args =/etc/dovecot/dovecot-sql.conf
   }

userdb {
    driver=static
    args = uid=5000 gid=5000 home=/var/vmail/%d/%n/Maildir allow_all_users=yes
   }

service auth {
  unix_listener auth-master {
       group = vmail
        mode = 0600
        user = vmail 
   }

# Postfix smtp-auth
        unix_listener /var/spool/postfix/private/auth {
                mode = 0660
                user = postfix
                group = postfix
        }
#mechanisms=plan login
}

protocol lda {
    auth_socket_path = /var/run/dovecot/auth-master
    postmaster_address = admin@forkedprocess.net
    mail_plugins = sieve
    log_path =
}

dict {
  #quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
}

!include_try local.conf