我曾尝试使用本指南为虚拟用户configurationPostfix / Dovecot组合。
我的服务器在CentOS 6.5上运行Postfix 2.6.6和Dovecot 2.0.9。
问题是，当我连接到使用Outlook 2013的服务器（它连接在IMAP + SMTP上很好），并发送自己的testing电子邮件，我没有收到电子邮件。 看着maillog，我可以看到我得到的错误
postfix/virtual[2768]: 9C3D480768: to=<[email protected]>, relay=virtual, delay=1132, delays=1132/0.02/0/0.02, dsn=4.2.0, status=deferred (delivery failed to mailbox /var/vmail/domain.net/user: cannot open file: Is a directory) 错误信息非常清晰，我想，这可能是我之前安装的缺陷Cyrus / Postfix的缺陷。 我继续前进，并删除了vmail文件夹，为该域创build了一个子文件夹，并将所有权更改为vmail：vmail。 我重新启动postfix和dovecot，收件箱目录再次出现。 Postfix继续像以前一样抱怨。 然后，我尝试删除该文件夹，然后创build一个空文件，但这只是一个dovecot问题，而不是一个后缀问题，所以现在dovecot说，它期待一个文件，而不是一个目录。
/etc/postfix/main.cf中
queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix mail_owner = postfix unknown_local_recipient_reject_code = 550 alias_maps = hash:/etc/postfix/aliases alias_database = $alias_maps inet_interfaces = all inet_protocols = ipv4 mydestination = $myhostname, localhost.$mydomain, localhost debug_peer_level = 2 debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 sendmail_path = /usr/sbin/sendmail.postfix newaliases_path = /usr/bin/newaliases.postfix mailq_path = /usr/bin/mailq.postfix setgid_group = postdrop html_directory = no manpage_directory = /usr/share/man sample_directory = /usr/share/doc/postfix-2.6.6/samples readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES relay_domains = * virtual_alias_maps=hash:/etc/postfix/vmail_aliases virtual_mailbox_domains=hash:/etc/postfix/vmail_domains virtual_mailbox_maps=hash:/etc/postfix/vmail_mailbox virtual_mailbox_base = /var/vmail virtual_minimum_uid = 2222 virtual_transport = virtual virtual_uid_maps = static:2222 virtual_gid_maps = static:2222 smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = /var/run/dovecot/auth-client smtpd_sasl_security_options = noanonymous smtpd_sasl_tls_security_options = $smtpd_sasl_security_options smtpd_sasl_local_domain = $mydomain broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
/etc/dovecot/dovecot.conf
listen = * ssl = no protocols = imap lmtp disable_plaintext_auth = no auth_mechanisms = plain login mail_access_groups = vmail default_login_user = vmail first_valid_uid = 2222 first_valid_gid = 2222 mail_location = maildir:/var/vmail/%d/%n passdb { driver = passwd-file args = scheme=SHA1 /etc/dovecot/passwd } userdb { driver = static args = uid=2222 gid=2222 home=/var/vmail/%d/%n allow_all_users=yes } service auth { unix_listener auth-client { group = postfix mode = 0660 user = postfix } user = root } service imap-login { process_min_avail = 1 user = vmail }
最后是我的域/别名/邮箱列表中的一些示例条目
domain.tld OK # /etc/postfix/vmail_domains [email protected] domain.tld/user # /etc/postfix/vmail_mailbox [email protected] [email protected] # /etc/postfix/vmail_aliases [email protected]:oOeIaLM/TyEPOdflb+GlL7d1MhE= # /etc/dovecot/passwd
答案非常简单。 /etc/postfix/vmail_mailbox的path缺less结尾的斜杠。 当没有结尾的斜杠时，postfix会将其视为一个文件，从而假定邮箱处于Mailbox（而不是Maildir）格式。
通过追加斜杠，postfix将正确地认为该目录是maildir格式，并相应地对其进行处理。
例：
[email protected] domain.tld/user/ [email protected] domain.tld/user2/