根据本文：
在邮箱内创建新文件时，Dovecot 会从邮箱的目录中复制读/写权限。
我没有看到这个。以下是我所看到的：
andrewsav@hroon-precis:~$ dovecot --version
2.0.19
andrewsav@hroon-precis:~$ sudo ls -al /var/mail/vhosts/myhost.com/andrews
total 76
d-wxrws--- 6 vmail vmail 4096 May 15 19:53 .
drwxrwsr-x 4 vmail vmail 4096 Mar 8 07:27 ..
drwxrws--- 2 vmail vmail 4096 May 15 19:53 cur
-rw-rwS--- 1 vmail vmail 288 May 12 20:49 dovecot.index
-rw-rwS--- 1 vmail vmail 31316 May 15 19:53 dovecot.index.log
-rw-rwS--- 1 vmail vmail 24 Dec 13 14:27 dovecot.mailbox.log
-rw-rw---- 1 vmail vmail 54 May 15 19:53 dovecot-uidlist
-rw-rwS--- 1 vmail vmail 8 Dec 13 14:32 dovecot-uidvalidity
-r--rwSr-- 1 vmail vmail 0 Dec 12 22:34 dovecot-uidvalidity.50c84fbc
drwxrws--- 2 vmail vmail 4096 May 15 21:15 new
-rw-rwS--- 1 vmail vmail 6 Dec 13 14:27 subscriptions
drwxrws--- 2 vmail vmail 4096 May 15 21:15 tmp
drwxrws--- 5 vmail vmail 4096 Dec 13 14:32 .Trash
andrewsav@hroon-precis:~$ sudo ls -al /var/mail/vhosts/myhost.com/andrews/new
total 24
drwxrws--- 2 vmail vmail 4096 May 15 21:15 .
d-wxrws--- 6 vmail vmail 4096 May 15 19:53 ..
-rw------- 1 vmail vmail 3435 May 15 19:54 1368604473.Vca02I500e0M443155.hroon-precis
-rw------- 1 vmail vmail 4028 May 15 20:42 1368607343.Vca02I500e1M96785.hroon-precis
-rw------- 1 vmail vmail 4623 May 15 21:15 1368609338.Vca02I500fcM737208.hroon-precis
andrewsav@hroon-precis:~$
邮件目录对群组具有读写权限，而新目录中的单个文件由于某种原因不具有读写权限。因此，希望访问这些文件的人员/进程无法访问它们。我遗漏了什么？
我正在运行 ubuntu 12.04LTS
更新 1
介绍一下背景：我已经使用 postfix+dovecot 有一段时间了。它是根据以下说明安装的，但略有不同：这个文件。通常邮箱不是在本地访问的，我通过远程客户端通过 POP/IMAP 访问。
不过我发现运行杂种狗偶尔在服务器上。如果我将其运行为
sudo mutt -f /var/mail/vhosts/myhost.com/andrews
但我希望能够运行它没有sudo，这就是麻烦的开始。我将自己添加到 vmail 组，并在 .muttrc 中添加了以下几行：
set spoolfile = '/var/mail/vhosts/myhost.com/andrews/'
alternates myhost.com
set reverse_name = yes
set from = '[email protected]'
但除非我明确对 new 和 cur 执行 chmod g+rw，否则此方法无效。而且它只在新邮件到达之前有效，因为新邮件没有该 rw 权限。
有什么办法可以解决这个问题吗？
更新 2
在与 NickW 聊天中讨论了这个问题后，我们得出结论，实际上是 Postfix 在编写这些文件，而不是 Dovecot。LDA 最有可能Postfix 虚拟。这是 Postfix 配置。
主文件：
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/apache2/ssl/my.crt
smtpd_tls_key_file=/etc/apache2/ssl/my.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = myhost.myhost.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
#mydestination = myhost.com, hroon-precis, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
#smtpd_tls_wrappermode=yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_tls_auth_only = no
#smtpd_sasl_security_options = noanonymous, noplaintext
smtpd_tls_security_level=may
virtual_mailbox_domains = myhost.com
virtual_mailbox_base = /var/mail/vhosts
virtual_mailbox_maps = hash:/etc/postfix/vmailbox
virtual_minimum_uid = 100
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
virtual_alias_maps = hash:/etc/postfix/virtual
mydomain = myhost.com
transport_maps = hash:/etc/postfix/transport
主配置文件
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - - - - smtpd
#smtp inet n - - - 1 postscreen
#smtpd pass - - - - - smtpd
#dnsblog unix - - - - 0 dnsblog
#tlsproxy unix - - - - 0 tlsproxy
#submission inet n - - - - smtpd
# -o syslog_name=postfix/submission
# -o smtpd_tls_security_level=encrypt
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#smtps inet n - - - - smtpd
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - - - - qmqpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - n 300 1 qmgr
#qmgr fifo n - n 300 1 oqmgr
tlsmgr unix - - - 1000? 1 tlsmgr
rewrite unix - - - - - trivial-rewrite
bounce unix - - - - 0 bounce
defer unix - - - - 0 bounce
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - - - - smtp
relay unix - - - - - smtp
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - - - - showq
error unix - - - - - error
retry unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# ====================================================================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
# mailbox_transport = lmtp:inet:localhost
# virtual_transport = lmtp:inet:localhost
#
# ====================================================================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus unix - n n - - pipe
# user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ====================================================================
# Old example of delivery via Cyrus.
#
#old-cyrus unix - n n - - pipe
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ====================================================================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
运输：
[email protected] discard:
[email protected] discard:
[email protected] discard:
虚拟邮箱：
[email protected] myhost.com/user1/
[email protected] myhost.com/user2/
... etc
[email protected] myhost.com/andrews/
@myhost.com myhost.com/andrews/
我搜索了 Postfix 文档，但未能找到为 Postfix 指定邮箱内新创建的邮件消息文件的权限的方法。
我的想法是，这可能是不可能的，然后必须有另一种方法来设置 mutt，以便它可以访问邮件目录而无需执行 sudo/be root。
任何提示都值得感激。
答案1
我在这里回答而不是评论，这样我就可以正确格式化。
既然您有 dovecot，那么您应该已经安装了 lda (它在 dovecot-core 中)。将其添加到 /etc/postfix/master.cf：
dovecot unix - n n - - pipe
flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient}
将其添加到 /etc/postfix/main.cf：
virtual_transport = dovecot
dovecot_destination_recipient_limit = 1
更改/etc/dovecot/conf.d/15-lda.conf：
protocol lda {
postmaster_address = [email protected]
log_path = /var/log/dovecot-deliver
info_log_path = /var/log/dovecot-deliver
}
（尽管 {} 之间的 3 行几乎是可选的）
postmaster_address是退回邮件的发件人地址
更改/etc/dovecot/conf.d/10-master.conf：
service auth {
...
unix_listener auth-userdb {
mode = 0666
user = vmail
group = vmail
}
...
}
将所有用户从 /etc/postfix/vmailbox 添加到 /etc/postfix/virtual 如下所示：
[email protected] [email protected]
[email protected] [email protected]
... etc
将 catch-all 移至 /etc/postfix/virtual：
@myhost.com [email protected]
更改/etc/dovecot/conf.d/15-lda.conf：
lda_mailbox_autocreate = yes
这将自动创建不存在的邮箱
为了保留丢弃规则，添加到 main.cf ：
mydestination=localhost.localdomain
添加至/etc/postfix/virtual：
[email protected] [email protected]
[email protected] [email protected]
[email protected] [email protected]
然后到 /etc/aliases ：
devnull: /dev/null
/etc/postfix/main.cf 中的这些行不再需要，可以删除：
#virtual_mailbox_base = /var/mail/vhosts
#virtual_minimum_uid = 100
#virtual_uid_maps = static:5000
#virtual_gid_maps = static:5000
#transport_maps = hash:/etc/postfix/transport
跑步
- 新别名
- 后映射 /etc/postfix/virtual
- 服务 Postfix 重启
- 重启 dovecot 服务
希望它能发挥作用。
答案2
您可以将 Dovecot 设置为您的 LDA 以解决您的问题。这样virtual就不会尝试在本地发送邮件，而是将其传递给 Dovecot。
根据 dovecot 文档，执行此操作的首选方法是通过 LMTP。
我保留的虚拟设置仍然有效，但是当实际将邮件传递到这些域时，它将使用设置的设置virtual_transport而不是直接传递邮件。
这是 Debian Wheezy 上的工作配置，使用 Dovecot 2.x：
dovecot.conf：
protocols = imap lmtp
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
mode = 0600
user = postfix
group = postfix
}
user = vmail
}
protocol lmtp {
postmaster_address = [email protected]
}
主文件：
virtual_mailbox_domains = example.org
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_transport = lmtp:unix:private/dovecot-lmtp
# Don't need these anymore
#virtual_uid_maps = static:5000
#virtual_gid_maps = static:5000
#virtual_minimum_uid = 1000
#virtual_mailbox_maps = hash:/etc/postfix/virtual_mailbox_users
#virtual_mailbox_base = /var/mail