我是初学者学习服务器。 我不知道它是否有用，我使用的是aws ec2和route53。 我正在尝试构建邮件服务器。 我可以成功向外界和本地发送邮件。 但是，我无法从外部接收邮件，例如Gmail，我也无法使用telnet访问端口110或143.
telnet inboxdrill.com 110
Trying 127.0.0.1...
Connected to inboxdrill.com.
Escape character is '^]'.
Connection closed by foreign host.
如果你让我知道我会很感激你的！请让我知道如何解决这个问题。
我的Ubuntu版本是：
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
当我检查tail -f /var/log/mail.log
dovecot: master: Error: service(imap-login): command startup failed, throttling for 2 secs
postfix/postscreen[26002]: CONNECT from [127.0.0.1]:42254 to [127.0.0.1]:25
postfix/postscreen[26002]: WHITELISTED [127.0.0.1]:42254
postfix/smtpd[26003]: warning: database /etc/postfix/virtual.db is older than source file /etc/postfix/virtual
postfix/smtpd[26003]: warning: cannot get RSA certificate from file "/etc/ssl/private/server.crt": disabling TLS support
postfix/smtpd[26003]: warning: TLS library problem: error:02001002:system library:fopen:No such file or directory:bss_file.c:398:fopen('/etc/ssl/private/server.crt','r'):
postfix/smtpd[26003]: warning: TLS library problem: error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
postfix/smtpd[26003]: warning: TLS library problem: error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:701:
postfix/smtpd[26003]: connect from inboxdrill.com[127.0.0.1]
postfix/smtpd[26003]: disconnect from inboxdrill.com[127.0.0.1] quit=1 commands=1
这是master.cf代码：
smtp inet n - y - - smtpd
smtp inet n - y - 1 postscreen
smtpd pass - - y - - smtpd
#dnsblog unix - - y - 0 dnsblog
#tlsproxy unix - - y - 0 tlsproxy
submission inet n - y - - 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=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
-o milter_macro_daemon_name=ORIGINATING
smtps inet n - y - - smtpd
-o syslog_name=postfix/smtps
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
-o milter_macro_daemon_name=ORIGINATING
这是main.cf：
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file = /etc/ssl/private/server.crt
smtpd_tls_key_file = /etc/ssl/private/server.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${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.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = inboxdrill.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, inboxdrill.com, ip-172-31-7-112.us-west-1.compute.internal, localhost.us-west-1.compute.internal, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
#mynetworks = this is my ip/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
home_mailbox = Maildir/
# added
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
mailbox_command =
smtpd_sasl_local_domain =
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtpd_tls_note_starttls_offer = yes
smtpd_tls_CAfile = /etc/ssl/certs/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
virtual_alias_maps = hash:/etc/postfix/virtual
答案 0 :(得分：0)
我在aws route53上添加了MX记录，也是A记录。
您应该为A记录的值添加DNS ipv4，并应为example 10 yourdomain.com的MX记录值添加优先级和邮件服务器域。
最重要的是，您应该在aws安全组上打开SMTP，SMTPS，IMAP，IMAPS，POP3，POP3等端口。您可以在ec2选项卡上找到它并编辑入站规则。
我是服务器的新手，如果有人认为它不正确而且不够，那么请回复我和其他人。
我很高兴自己解决这个问题。我可以从外面接收电子邮件，也可以发送电子邮件。 ：d 我希望这对像我这样的新手有用。 ：）