在 Ubuntu 上使用 Postfix 和 Dovecot 设置邮件服务器的过程中，我现在可以向其他域发送邮件。但是，我无法从其他域接收邮件。日志中显示
Jun 14 09:34:35 postfix/smtpd[27426]: connect from mail-wg0-f44.google.com[74.125.82.44]
Jun 14 09:34:35 postfix/smtpd[27426]: warning: SASL: Connect to private/auth failed: Permission denied
Jun 14 09:34:35 postfix/smtpd[27426]: fatal: no SASL authentication mechanisms
Jun 14 09:34:36 postfix/master[18697]: warning: process /usr/lib/postfix/smtpd pid 27426 exit status 1
Jun 14 09:34:36 postfix/master[18697]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
我不知道我的配置哪里出了错误。该文件auth如下：
srw-rw---- 1 vmail vmail 0 Jun 14 08:51 /var/spool/postfix/private/auth
以下是输出postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
dovecot_destination_recipient_limit = 1
inet_interfaces = all
mailbox_size_limit = 0
mydestination = $myhostname, localhost, localhost.$mydomain
myhostname = mail.example.com
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
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_data_restrictions = reject_multi_recipient_bounce
smtpd_helo_required = yes
smtpd_recipient_restrictions = reject_non_fqdn_recipient reject_non_fqdn_sender reject_unknown_recipient_domain reject_unknown_sender_domain permit_mynetworks reject_sender_login_mismatch reject_unauth_destination check_recipient_access hash:/etc/postfix/roleaccount_exceptions reject_multi_recipient_bounce reject_non_fqdn_helo_hostname reject_invalid_helo_hostname check_helo_access pcre:/etc/postfix/helo_checks check_sender_mx_access cidr:/etc/postfix/bogus_mx permit
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = private/auth
smtpd_sasl_type = dovecot
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_alias_maps = proxy:ldap:/etc/postfix/virtual_aliases.cf
virtual_gid_maps = static:10000
virtual_mailbox_domains = $mydomain
virtual_transport = dovecot
virtual_uid_maps = static:10000
以及dovecot -n
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.13.0-042stab106.6 x86_64 Ubuntu 14.04.2 LTS ext4
auth_debug = yes
auth_mechanisms = plain login
auth_verbose = yes
mail_location = maildir:/srv/mail/%n
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-ldap.conf.ext
driver = ldap
}
protocols = " imap"
service auth {
unix_listener /var/spool/postfix/private/auth {
group = vmail
mode = 0660
user = vmail
}
unix_listener auth-master {
mode = 0600
user = vmail
}
}
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key = </etc/dovecot/private/dovecot.pem
userdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
protocol lda {
postmaster_address = [email protected]
}
任何提示都非常感谢。提前感谢您的帮助。
答案1
由于不同的 uid 和严格权限，您postfix无法访问 auth-daemon 套接字。最简单的方法是将权限更改为 666 (rw-rw-rw-)，并检查 auth 是否已修复。然后您必须处理进程 UID/用户，以将 auth 限制为仅限邮件软件。
service auth {
unix_listener /var/spool/postfix/private/auth {
group = vmail
mode = 0666
# mode = 0660
user = vmail
}
unix_listener auth-master {
mode = 0666
# mode = 0600
user = vmail
}
}