无法使用Postfix接收电子邮件：Status = deferred（与127.0.0.1 的会话在接收到初始服务器问候语时超时）

我在一个月前设置了一台服务器，因为个人原因我不得不停下来。 我今天又回到了这里，试图发送/接收电子邮件。

最初，我从自己的Gmail帐户发送一封电子邮件到我的服务器上的一个电子邮件帐户，我成功地收到了它。 但是，当我回复该电子邮件时，我还没有收到我的Gmail帐户中收到的邮件，也没有收到我的电子邮件帐户退回电子邮件。

但是，我已经尝试了两次，从Gmail帐户发送电子邮件到服务器，他们还没有收到。 我也一次又一次地向Gmail帐户发送了一封电子邮件，邮件或退回邮件都没有收到。

我已经检查过Postfix邮件队列，并显示以下信息：

• 使用procmail传递到标准输出和第二台服务器
• 知识产权为邮件networking钓鱼报告
• 后缀configurationwrt端口25
• Dovecot虚拟用户不authentication
• postfix.sendmail -n选项的用途

我也检查了邮件日志，我得到以下错误：

May 16 15:58:43 setanta postfix/smtp[9231]: DC06A122: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=1542, delays=1242/0.01/300/0, dsn=4.4.2, status=deferred (conversation with 127.0.0.1[127.0.0.1] timed out while receiving the initial server greeting) 

有没有人有关于这是怎么回事的想法？

提前谢谢了！

编辑
这是main.cf文件。 这一切都没有注释，所以如果在这里有什么缺失，那么要么没有包括在内，或者我已经散列。

 queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix mail_owner = postfix inet_interfaces = all inet_protocols = all mydestination = setanta.gravex.co.uk, localhost, localhost.localdomain unknown_local_recipient_reject_code = 550 alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases 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 myhostname = setanta.gravex.co.uk mynetworks = 127.0.0.0/8 [::1]/128 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 = /var/vmail virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, reject_unauth_destination smtpd_use_tls = yes smtpd_tls_security_level = may smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf relay_domains = mysql:/etc/postfix/mysql-virtual_relaydomains.cf relay_recipient_maps = mysql:/etc/postfix/mysql-virtual_relayrecipientmaps.cf 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 smtpd_sender_restrictions = check_sender_access mysql:/etc/postfix/mysql-virtual_sender.cf smtpd_client_restrictions = check_client_access mysql:/etc/postfix/mysql-virtual_client.cf maildrop_destination_concurrency_limit = 1 maildrop_destination_recipient_limit = 1 virtual_transport = maildrop header_checks = regexp:/etc/postfix/header_checks mime_header_checks = regexp:/etc/postfix/mime_header_checks nested_header_checks = regexp:/etc/postfix/nested_header_checks body_checks = regexp:/etc/postfix/body_checks content_filter = amavis:[127.0.0.1]:10024 receive_override_options = no_address_mappings relayhost = mailbox_size_limit = 0 message_size_limit = 0