Postfix/Dovecot 问题接收邮件

Question

我在使用 PostFix 和 Dovecot 时遇到问题。我遵循了本指南：https : //github.com/opensolutions/ViMbAdmin/wiki/Mail-System-Install-on-Ubuntu ，当邮件发送到服务器时，这在 mail.log 中

Oct 26 12:40:11 vps31465 postfix/smtpd[13551]: connect from nm3-vm2.bt.bullet.mail.ir2.yahoo.com[212.82.99.122]
Oct 26 12:40:11 vps31465 postfix/smtpd[13551]: warning: SASL: Connect to private/dovecot-auth failed: No such file or directory
Oct 26 12:40:11 vps31465 postfix/smtpd[13551]: fatal: no SASL authentication mechanisms
Oct 26 12:40:12 vps31465 postfix/master[13383]: warning: process /usr/lib/postfix/smtpd pid 13551 exit status 1
Oct 26 12:40:12 vps31465 postfix/master[13383]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling

这是我从 postfix -n 的输出：

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
home_mailbox = Maildir/
inet_interfaces = all
mailbox_command = /usr/lib/dovecot/deliver -c /etc/dovecot/dovecot.conf -m "${EXTENSION}"
mailbox_size_limit = 0
mydestination = polynet.me, vps31465.vps.ovh.ca, localhost.vps.ovh.ca, localhost
myhostname = vps31465.vps.ovh.ca
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_use_tls = yes
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_path = private/dovecot-auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sender_restrictions = reject_unknown_sender_domain
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/dovecot/dovecot.pem
smtpd_tls_key_file = /etc/dovecot/private/dovecot.pem
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_mandatory_protocols = SSLv3, TLSv1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
tls_random_source = dev:/dev/urandom

我的输出来自 doveconf -n

root@vps31465:~# doveconf -n
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-042stab093.5 x86_64 Ubuntu 14.04.1 LTS
mail_location = mbox:~/mail:INBOX=/var/mail/%u
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
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 {
  driver = pam
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
}
protocols = " imap lmtp sieve pop3"
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key = </etc/dovecot/private/dovecot.pem
userdb {
  driver = passwd
}

域是mail.polynet.me。

我不知道我哪里出错了。

非常感谢帮助:)

Answer 1

好的，首先看起来您的传入邮件交易遇到了 SASL 身份验证问题。

Oct 26 12:40:11 vps31465 postfix/smtpd[13551]: warning: SASL: Connect to private/dovecot-auth failed: No such file or directory

这条路径看起来来自这里，我假设是postconf输出（与您描述如何获得它的方式相反）：

smtpd_sasl_path = private/dovecot-auth

这是一个套接字的路径，它是相对于 $queue_directory 的。我不确定为什么这不在您的（假设的）postconf 输出中。在我的系统上它是 /var/spool/postfix。

因此，请检查该路径是否存在（可能不存在）

你的doveconf -n输出实际上看起来像是你 postconf 输出的重复，所以我只能做这么多。在我的系统上，我有一个像这样的节：

service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
}

它创建了 postfix 与之通信以发送电子邮件的套接字。您已将套接字文件命名dovecot-auth为auth，这似乎很合理。我猜你在为 postfix 配置那个套接字时有问题。

请修复您问题中的配置列表，否则我可能不得不投反对票。

编辑：我查看了您一直在使用的链接。它指的是带有 dovecot 设置说明的要点，我认为您已经完全错过了。