当我尝试通过telnetlogin时，我立即被踢出：
telnet localhost 25 Trying ::1... Connected to localhost.localdomain. Escape character is '^]'. Connection closed by foreign host. 在日志中，我收到以下错误消息：
Jul 17 23:15:26 mail postfix/smtpd[1606]: connect from localhost[::1] Jul 17 23:15:26 mail postfix/smtpd[1606]: fatal: no SASL authentication mechanisms Jul 17 23:15:27 mail postfix/master[597]: warning: process /usr/lib/postfix/smtpd pid 1606 exit status 1 Jul 17 23:15:27 mail postfix/master[597]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
当外部的MTA想要发送邮件时，我也收到了同样的错误信息。
我的10个master.conf：
# Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 }
validation似乎存在：
ls -l /var/spool/postfix/private/auth srw-rw-rw- 1 root root 0 Jul 17 22:55 /var/spool/postfix/private/auth
最后但并非最不重要的是我的postconf -n：
postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix inet_interfaces = all mailbox_size_limit = 0 mydestination = XXX, localhost.XXX, localhost, $mydomain myhostname = XXX mynetworks_style = subnet myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relay_domains = hash:/etc/postfix/relay_domains relayhost = XXX smtp_generic_maps = hash:/etc/postfix/generic smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_sender_dependent_authentication = yes smtp_tls_security_level = may smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous, noplaintext smtpd_sasl_tls_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes transport_maps = hash:/etc/postfix/transport, $relay_domains virtual_alias_domains = hash:/etc/postfix/virtual_domains virtual_alias_maps = hash:/etc/postfix/virtual_maps
我在某个地方犯了错吗？ 如果没有，我怎样才能进一步debugging？
非常感谢你提前（：
编辑：
我的10-auth.conf：
disable_plaintext_auth = yes auth_username_format = %Ln auth_mechanisms = plain login !include auth-ldap.conf.ext
dovecotconfiguration中是否有auth_mechanisms行？
如果是这样，张贴，如果不是这可能是问题。
默认参考：auth_mechanisms =普通login
但是由于你的postfix sasl安全选项，你可能会想要别的东西，明文和login都被认为是明文。
更多： http : //wiki2.dovecot.org/Authentication/Mechanisms