Fatal: Nenhum mecanismo de autenticação SASL

Question

 root@server:~# postconf -n
    append_dot_mydomain = no
    biff = no
    broken_sasl_auth_clients = yes
    config_directory = /etc/postfix
    disable_vrfy_command = yes
    dovecot_destination_recipient_limit = 1
    inet_interfaces = all
    mailbox_size_limit = 0
    message_size_limit = 0
    mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128, 144.122.116.0/24


   mynetworks_style = host
    myorigin = /etc/mailname
    queue_directory = /var/spool/postfix
    readme_directory = no
    recipient_delimiter = +
    relayhost = [smtp.buyorsell.it]:587
    smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
    smtp_use_tls = yes
    smtpd_banner = $myhostname ESMTP $mail_name
    smtpd_delay_reject = yes
    smtpd_helo_required = yes
    smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, rej                                             ect_unauth_destination
    smtpd_sasl_auth_enable = yes
    smtpd_sasl_path = private/auth
    smtpd_sasl_security_options = noanonymous
    smtpd_sasl_type = dovecot
    smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks,permit
    smtpd_tls_cert_file = /etc/ssl/certs/smtpd.cert
    smtpd_tls_key_file = /etc/ssl/private/smtpd.key
    smtpd_tls_security_level = may
    smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
    smtpd_use_tls = yes
    virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf
    virtual_mailbox_base = /var/vmail
    virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
    virtual_mailbox_limit = 0
    virtual_mailbox_maps = proxy:mysql:$config_directory/mysql-virtual-mailbox-maps.                                             cf
    virtual_transport = dovecot

e

root@server:~# dovecot -n
# 2.0.19: /etc/dovecot/dovecot.conf
doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/conf.d/10-master.conf:124: add auth_ prefix to all settings inside auth {} and remove the auth {} section completely
doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/conf.d/10-master.conf:124: add auth_ prefix to all settings inside auth {} and remove the auth {} section completely
# OS: Linux 2.6.32-042stab088.4 x86_64 Ubuntu 12.04.5 LTS simfs
auth_mechanisms = plain login
disable_plaintext_auth = no
mail_location = maildir:/var/mail/vhosts/%d/%n
mail_privileged_group = mail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
}
protocols = imap pop3 sieve
service auth-worker {
  user = vmail
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener /var/spool/postfix/private/dovecot-auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0600
    user = vmails
  }
  user = dovecot
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
protocol imap {
  imap_client_workarounds = delay-newmail
  mail_max_userip_connections = 10
}
protocol pop3 {
  mail_max_userip_connections = 10
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
}
protocol lda {
  deliver_log_format = msgid=%m: %$
  mail_plugins = sieve
  postmaster_address = postmaster
  quota_full_tempfail = yes
  rejection_reason = Your message to <%t> was automatically rejected:%n%r
}

    

Answer 1

usuário corrigido em uma das configurações dovecot para:

  unix_listener auth-userdb {
    mode = 0600
    user = vmail
  }

    

Answer 2

De link

Eu tive que correr

$ sudo cp /usr/lib/x86_64-linux-gnu/sasl2/libplain.so.2.0.25 /usr/lib/sasl2/libplain.so $ sudo systemctl restart postfix

em zesty.