我需要能够使用 gmail 的 Web 界面发送电子邮件，但让它们看起来来自我自己的域，而不是来自 gmail 地址。为了做到这一点，gmail 会询问我的 smtp 服务器的信息（url、帐户等），然后继续验证我是否确实可以使用我自己的 smtp 服务器（postfix，托管在我的 linode 中）从所述域发送电子邮件。
Gmail 的回复是“您的其他电子邮件提供商响应太慢。请稍后重试，或联系您其他域的管理员以获取更多信息。” - 无法从他们那里获得更多详细信息。
我按照以下说明为 Centos 7 设置了 Postfix、Dovecot、MariaDBLinode 针对 Centos 7 的教程我尝试根据 Chuan Ji 的教程《使用 postfix 和 gmail 自定义域名电子邮件》中的一些说明来适应自己的需要（例如，我根据那里的建议生成了一个 .pem 文件，并在证书中包含了我的 smtp 服务器的名称作为通用名称 - mail.tcs-usa.com 以使 gmail 满意）。
我能够使用 postfix 作为我的 smtp 服务器，通过 Thunderbird 发送电子邮件，并且我已将 postfix 配置为将发往我域中任何地址的传入电子邮件转发到我的 gmail 帐户。这非常有效。我还使用 mxtoolbox.com 检查了我的 smtp 服务器，它也发现一切正常。
下面我摘录了 postfix 日志的一段。唯一让我印象深刻的是第 11 行的“match_list_match: mail-yk0-f169.google.com: no match”和第 12 行的“match_list_match: mail-yk0-f169.google.com: no match”。
在此先感谢您的所有帮助，如果我包含了太多信息，请原谅，但我已经这样做了两天，却没有任何进展。
亚历克斯
以下是 /etc/postfix/main.cf 中的所有活动行：
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
inet_interfaces = all
inet_protocols = all
mydestination = localhost, localhost.localdomain
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
debug_peer_level = 2
#alexw- added google
debug_peer_list = google.com
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
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
myhostname = mail.tcs-usa.com
mydomain = tcs-usa.com
myorigin = tcs-usa.com
#mynetworks = 127.0.0.0/8
message_size_limit = 30720000
virtual_alias_domains =
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, mysql:/etc/postfix/mysql-virtual_email2email.cf
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf
virtual_mailbox_base = /home/vmail
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_authenticated_header = yes
# alexw - removed permit_mynetworks from line below
smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unauth_destination
smtpd_use_tls = yes
smtpd_tls_auth_only = yes
# The next 2 lines are the settings for using dovecot's ssl certificates:
# smtpd_tls_cert_file = /etc/pki/dovecot/certs/dovecot.pem
# smtpd_tls_key_file = /etc/pki/dovecot/private/dovecot.pem
# Replacing the above two lines with this one:
smtpd_tls_cert_file = /etc/postfix/tcs-usa.pem
virtual_create_maildirsize = yes
virtual_maildir_extended = yes
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps
virtual_transport = dovecot
dovecot_destination_recipient_limit = 1
以下是 master.cf 中的活动行：
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - n - - smtpd
#smtp inet n - n - 1 postscreen
#smtpd pass - - n - - smtpd
#dnsblog unix - - n - 0 dnsblog
#tlsproxy unix - - n - 0 tlsproxy
submission inet n - n - - smtpd
-o syslog_name=postfix/submission
-o smtpd_tls_security_level=encrypt
-o smtpd_sasl_auth_enable=yes
-o smtpd_reject_unlisted_recipient=no
-o smtpd_client_restrictions=$mua_client_restrictions
-o smtpd_helo_restrictions=$mua_helo_restrictions
-o smtpd_sender_restrictions=$mua_sender_restrictions
-o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
-o milter_macro_daemon_name=ORIGINATING
-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
-o smtpd_tls_cert_file=/etc/postfix/tcs-usa.pem
# alexw - added the line above (smtpd_tls_cert_file)
smtps inet n - n - - smtpd
-o syslog_name=postfix/smtps
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_reject_unlisted_recipient=no
-o smtpd_client_restrictions=$mua_client_restrictions
-o smtpd_helo_restrictions=$mua_helo_restrictions
-o smtpd_sender_restrictions=$mua_sender_restrictions
-o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
-o milter_macro_daemon_name=ORIGINATING
#628 inet n - n - - qmqpd
pickup unix n - n 60 1 pickup
cleanup unix n - n - 0 cleanup
qmgr unix n - n 300 1 qmgr
#qmgr unix n - n 300 1 oqmgr
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
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
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
dovecot unix - n n - - pipe
flags=DRhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -d ${recipient}
这是与 Gmail 尝试验证我的 smtp 服务器相关的日志摘录：
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: connect from mail-yk0-f169.google.com[209.85.160.169]
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: smtp_stream_setup: maxtime=300 enable_deadline=0
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? 127.0.0.0/8
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? 127.0.0.0/8
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? 45.79.184.0/24
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? 45.79.184.0/24
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? [::1]/128
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? [::1]/128
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? [fe80::]/64
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? [fe80::]/64
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_list_match: mail-yk0-f169.google.com: no match
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: match_list_match: 209.85.160.169: no match
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: auto_clnt_open: connected to private/anvil
Dec 6 01:20:12 ewr postfix/submission/smtpd[13344]: event_enable_read: fd 18
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: send attr request = connect
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: send attr ident = submission:209.85.160.169
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: vstream_fflush_some: fd 18 flush 49
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: vstream_buf_get_ready: fd 18 got 25
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: status
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: status
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute value: 0
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: count
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: count
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute value: 1
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: rate
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: rate
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute value: 1
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: (list terminator)
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: (end)
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: > mail-yk0-f169.google.com[209.85.160.169]: 220 mail.tcs-usa.com ESMTP Postfix
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: watchdog_pat: 0x56163ce15080
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: vstream_fflush_some: fd 17 flush 36
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: smtp_get: EOF
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? 127.0.0.0/8
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? 127.0.0.0/8
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? 45.79.184.0/24
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? 45.79.184.0/24
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? [::1]/128
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? [::1]/128
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostname: mail-yk0-f169.google.com ~? [fe80::]/64
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_hostaddr: 209.85.160.169 ~? [fe80::]/64
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_list_match: mail-yk0-f169.google.com: no match
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: match_list_match: 209.85.160.169: no match
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: send attr request = disconnect
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: send attr ident = submission:209.85.160.169
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: vstream_fflush_some: fd 18 flush 52
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: vstream_buf_get_ready: fd 18 got 10
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: status
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: status
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute value: 0
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: private/anvil: wanted attribute: (list terminator)
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: input attribute name: (end)
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: lost connection after CONNECT from mail-yk0-f169.google.com[209.85.160.169]
Dec 6 01:20:13 ewr postfix/submission/smtpd[13344]: disconnect from mail-yk0-f169.google.com[209.85.160.169]
答案1
正如承诺的那样，我现在发布了一个解决方案：我没有使用服务器名称 smtp.mydomain.com，而是使用服务器的 IP 地址，问题就解决了。Google 能够验证，现在我可以从我的 gmail 帐户发送电子邮件，而 gmail 或 google 不会出现在发件人：或发件人：字段中。
很有可能，这与我的 DNS 记录设置方式有关，但我想既然它现在正在工作，我会暂时停止尝试弄清楚。
找到解决方案http://bit.ly/1NTmSqz
亚历克斯