求助 IIS7 下php服务器 mail函数发送失败的问题

[发现心流]

使用 hMailServer 配置了SMTP服务器,
php.ini打开了所有的错误和警告信息,mail函数无任何提示信息, 对应的gmail信箱没有收到邮件。

根据邮件的发送报告,smtp对邮件进行了发送，但是目标服务器没有回应

php.ini配置如下：

[mail function]
; For Win32 only.
; http://php.net/smtp
SMTP = localhost
; http://php.net/smtp-port
smtp_port = 25

; For Win32 only.
; http://php.net/sendmail-from
sendmail_from = webmaster@127.0.0.1




Content-Type: text/plain; charset="utf-8"
Return-Path: <>
Message-ID: <4F0AC3E7-0B58-456E-9C08-6C4AA5E8EA4C@localhost>
Date: Wed, 13 Apr 2011 05:57:30 -0700
From: mailer-daemon@localhost
To: webmaster@127.0.0.1
Subject: Undeliverable: We are proccessing your question as soon as possible !
Content-Transfer-Encoding: quoted-printable
X-hMailServer-LoopCount: 1

Your message did not reach some or all of the intended recipients.

Sent: Wed, 13 Apr 2011 09:47:20 +0100
Subject: We are proccessing your question as soon as possible !

The following recipient(s) could not be reached:

[e-mail]
Error Type: SMTP
Connection to recipients server failed.
Error: Host name: 74.125.127.27, message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

Tried 5 time(s)



hMailServer