我在 VPS 上设置了一个邮件服务器（具有多个虚拟主机）。我使用了 postfix、dovecot、postfixadmin、squirrel 和 mysql。我可以通过 squirrel 发送邮件，但无法接收任何邮件。这是我的 /var/log/maillog
Apr 21 16:52:49 vultr postfix/qmgr[8072]: 90BB738C61: from=<[email protected]>, size=19715, nrcpt=1 (queue active)
Apr 21 16:52:49 vultr postfix/qmgr[8072]: warning: connect to transport private/dovecot: Connection refused
Apr 21 16:52:49 vultr postfix/error[8213]: 90BB738C61: to=<[email protected]>, relay=none, delay=0.13, delays=0.13/0/0/0, dsn=4.3.0, status=deferred (mail transport unavailable)
这是postconf -n输出：
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
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
html_directory = no
inet_interfaces = all
inet_protocols = all
mail_owner = postfix
mailbox_command = /usr/libexec/dovecot/deliver
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = localhost
myhostname = mail.onlineprintshop.ca
mynetworks = 127.0.0.0/8 [::1]/128
myorigin = onlineprintshop.ca
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
sample_directory = /usr/share/doc/postfix-2.10.1/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_recipient_restrictions = permit_mynetworks,permit_tls_all_clientcerts,reject_unauth_destination,permit
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_exceptions_networks = $mynetworks
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = cyrus
smtpd_tls_ask_ccert = yes
smtpd_tls_cert_file = /etc/keys/pub.crt
smtpd_tls_key_file = /etc/keys/prv.key
smtpd_tls_loglevel = 1
smtpd_tls_received_header = no
smtpd_tls_req_ccert = yes
smtpd_tls_security_level = none
smtpd_tls_session_cache_database = btree:/var/spool/postfix/smtpd_tls_session_cache
tls_random_source = dev:/dev/urandom
unknown_local_recipient_reject_code = 550
virtual_alias_maps = proxy:mysql:$config_directory/mysql_virtual_alias_maps.cf
virtual_gid_maps = static:8
virtual_mailbox_domains = proxy:mysql:$config_directory/mysql_virtual_domains_maps.cf
virtual_mailbox_maps = proxy:mysql:$config_directory/mysql_virtual_mailbox_maps.cf
virtual_minimum_uid = 150
virtual_transport = dovecot
virtual_uid_maps = static:150
postconf: warning: /etc/postfix/main.cf: unused parameter: dovecot_destination_recipient_limit=1
这是dovecot -n输出：
(Core) ext3
first_valid_uid = 150
mail_location = maildir:/var/mail/%d/%n
mbox_write_locks = fcntl
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.ext
driver = sql
}
protocols = imap pop3
ssl = required
ssl_cert = /etc/pki/dovecot/certs/dovecot.pem
ssl_key = /etc/pki/dovecot/private/dovecot.pem
userdb {
driver = passwd
}
userdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
这是postconf -M输出：
smtp inet n - n - - smtpd
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
pickup unix n - n 60 1 pickup
cleanup unix n - n - 0 cleanup
qmgr unix n - n 300 1 qmgr
tlsmgr unix - - n 1000? 1 tlsmgr
rewrite unix - - n - - trivial-rewrite
bounce unix - - n - 0 bounce
defer unix - - n - 0 bounce
trace unix - - n - 0 bounce
verify unix - - n - 1 verify
flush unix n - n 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - n - - smtp
relay unix - - n - - smtp
showq unix n - n - - showq
error unix - - n - - error
retry unix - - n - - error
discard unix - - n - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - n - - lmtp
anvil unix - - n - 1 anvil
scache unix - - n - 1 scache
任何想法？
答案1
问题出在这一行：
Apr 21 16:52:49 vultr postfix/qmgr[8072]: warning: connect to transport private/dovecot: Connection refused
“连接被拒绝”表示没有进程监听该套接字，可能是 /var/spool/postfix/private/dovecot 。由于您的postconf -M输出没有列出任何有关dovecot您在 master.cf 中缺少一行的信息，例如：
dovecot unix - n n - - pipe
flags=DRhu argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient}