连接到私有/身份验证失败：没有这样的文件或目录

Question

我已经设置了 postfix、dovecot 和 roundcube。通过 roundcube 接收和发送电子邮件以及通过 imap 与另一个电子邮件客户端接收电子邮件一样有效。

但我无法使用外部电子邮件客户端发送电子邮件。一旦我连接，我就会看到：

postfix/smtpd[1258]: warning: SASL: Connect to private/auth failed: No such file or directory
postfix/smtpd[1258]: fatal: no SASL authentication mechanisms

在邮件日志中。

这是我的 dovecot 配置：

dovecot -n
# 2.1.7: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.6 
mail_location = mbox:~/mail:INBOX=/var/mail/%u
namespace inbox {
  inbox = yes
  location = 
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix = 
}
passdb {
  args = /etc/dovecot/dovecot-sql.conf
  driver = sql
}
protocols = imap pop3
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key = </etc/dovecot/private/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-sql.conf
  driver = sql
}

这是我的后缀配置：

postconf -n
alias_database = hash:/etc/aliases
alias_maps = pgsql:/etc/postfix/pgsql-aliases.cf
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
default_transport = error
dovecot_destination_recipient_limit = 1
html_directory = /usr/share/doc/postfix/html
inet_interfaces = 127.0.0.1, 192.168.1.134
inet_protocols = ipv4
local_recipient_maps = $virtual_mailbox_maps
local_transport = virtual
mailbox_size_limit = 0
mydestination = localhost
myhostname = vocdemosvr01.voxtelo.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = $mydomain
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relay_domains = proxy:pgsql:/etc/postfix/pgsql/relay_domains.cf
relay_transport = error
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = private/auth
smtpd_sasl_type = dovecot
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_alias_maps = proxy:pgsql:/etc/postfix/pgsql/virtual_alias_maps.cf
virtual_gid_maps = static:12
virtual_mailbox_base = /var/vmail
virtual_mailbox_domains = proxy:pgsql:/etc/postfix/pgsql/virtual_domains_maps.cf
virtual_mailbox_limit = 512000000
virtual_mailbox_maps = proxy:pgsql:/etc/postfix/pgsql/virtual_mailbox_maps.cf
virtual_minimum_uid = 8
virtual_transport = dovecot
virtual_uid_maps = static:8
voxdemosvr01:/var/spool/postfix/private# 

我需要检查哪些配置？

Answer 1

查看

/etc/dovecot/conf.d/10-master.conf

对于线

unix_listener private/auth

将其更改为

unix_listener /var/spool/postfix/private/auth

重新启动 dovecot 并重试。如果仍然不起作用，请发布dovecot -n和的输出postfix -n

Answer 2

花了几个小时试图弄清楚这一点后，我终于解决了我的问题，希望这对其他人有帮助......

在 postfix/main.cf 文件中，您有类似的内容：

smtpd_sasl_path = private/auth

在 dovecot/conf.d/10-master.conf 你有这样的东西：

service auth { 
    # auth_socket_path points to this userdb socket by default. It's typically 
    # used by dovecot-lda, doveadm, possibly imap process, etc. Its default 
    # permissions make it readable only by root, but you may need to relax these 
    # permissions. Users that have access to this socket are able to get a list 
    # of all usernames and get results of everyone's userdb lookups. 
    unix_listener /var/spool/postfix/private/auth { 
      mode = 0666 
      user = postfix 
      group = postfix 
    } 

  ...

在我的情况下，第一个文件中的“private/auth”与 unix_listener 路径不匹配，只要我把这个与第一个相同，它就解决了问题。我的猜测是 smtpd_sasl_path 必须与 /var/spool/postfix/... 相同，否则它将失败。

希望这可以帮助，