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2 通过 C# 应用程序从 IIS SMTP 电子邮件发送的标头接收

tag-icon • tag-icon windows email smtp iis-7.5 smtp-headers
2 通过 C# 应用程序从 IIS SMTP 电子邮件发送的标头接收

我通常使用 Windows Server 2008 R2 和 IIS 7.5。我使用 IIS 6 smpt 服务器发送电子邮件。现在，当我通过 C# 应用程序发送电子邮件时，我看到从标题中收到 2 条消息。这可能是什么原因造成的？

显示 Gmail 和 Hotmail 邮件头

邮箱：

Delivered-To: [email protected]
Received: by 10.112.29.167 with SMTP id l7csp43703lbh;
        Sat, 10 Mar 2012 08:16:29 -0800 (PST)
Received: by 10.14.127.12 with SMTP id c12mr1026618eei.19.1331396188791;
        Sat, 10 Mar 2012 08:16:28 -0800 (PST)
Return-Path: <[email protected]>
Received: from noreply.monstermmorpg.com (noreply.monstermmorpg.com. [85.17.154.139])
        by mx.google.com with ESMTP id f41si4528441eeo.146.2012.03.10.08.16.27;
        Sat, 10 Mar 2012 08:16:28 -0800 (PST)
Received-SPF: pass (google.com: domain of [email protected] designates 85.17.154.139 as permitted sender) client-ip=85.17.154.139;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 85.17.154.139 as permitted sender) [email protected]
Received: from XCPV002 ([127.0.0.1]) by noreply.monstermmorpg.com with Microsoft SMTPSVC(7.5.7601.17514);
     Sat, 10 Mar 2012 16:16:28 +0000
MIME-Version: 1.0
From: "MonsterMMORPG"
 <[email protected]>
To: [email protected]
Date: 10 Mar 2012 16:16:28 +0000
Subject: =?utf-8?B?UG9rZW1vbkNyYWZ0IGRhaGEga2FsaXRlbGkgYmlyIG95dW4g?=
 =?utf-8?B?b2xhcmFrIGdlcmkgZMO2bmTDvC4gRXNraSBoZXNhYsSxbsSxeiBkdXJ1?=
 =?utf-8?B?eW9yLg==?=
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64
Return-Path: [email protected]
Message-ID: <[email protected]>
X-OriginalArrivalTime: 10 Mar 2012 16:16:28.0941 (UTC) FILETIME=[26372BD0:01CCFED9]

hotmail 邮件头

x-store-info:sbevkl2QZR7OXo7WID5ZcaZ0jeT0hTF6w5JqyzrMGIIJ4/L/t2gj2cA4gOeWpl7k+VkJUhAu0L19pcdx17/6zH+umIRUQcxNC7a6JMdOu4uk+atrpASsFAd6JPSp2WMA
Authentication-Results: hotmail.com; sender-id=temperror (sender IP is 85.17.154.139) [email protected]; dkim=none header.d=monstermmorpg.com; x-hmca=none
X-Message-Status: n:0:n
X-SID-PRA: MonsterMMORPG <[email protected]>
X-DKIM-Result: None
X-AUTH-Result: NONE
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0xO0Q9MTtHRD0xO1NDTD0w
X-Message-Info: NhFq/7gR1vQcnWpWXvTdSPoVLSrfQUf9NNYiD+nue1hb767bbTKXz+tuMD66iU4vKsnCmrISnMcViv7BRc8FinIdJij0qRdzfb9MQFyl8Qnq2jH2yHHz6W3BUjjFUEclGZIdpMuV4EQ=
Received: from noreply.monstermmorpg.com ([85.17.154.139]) by BAY0-MC3-F1.Bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900);
     Sat, 10 Mar 2012 08:20:03 -0800
Received: from XCPV002 ([127.0.0.1]) by noreply.monstermmorpg.com with Microsoft SMTPSVC(7.5.7601.17514);
     Sat, 10 Mar 2012 16:20:03 +0000
MIME-Version: 1.0
From: "MonsterMMORPG"
 <[email protected]>
To: [email protected]
Date: 10 Mar 2012 16:20:03 +0000
Subject: =?utf-8?B?UG9rZW1vbkNyYWZ0IGRhaGEga2FsaXRlbGkgYmlyIG95dW4g?=
 =?utf-8?B?b2xhcmFrIGdlcmkgZMO2bmTDvC4gRXNraSBoZXNhYsSxbsSxeiBkdXJ1?=
 =?utf-8?B?eW9yLg==?=
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64
Return-Path: [email protected]
Message-ID: <[email protected]>
X-OriginalArrivalTime: 10 Mar 2012 16:20:03.0608 (UTC) FILETIME=[A62AC180:01CCFED9]

如果你检查一下，你会发现有 2 个来自标题的接收信息。我还想展示一下如何发送电子邮件以及我的 smtp 服务器配置

这就是我发送电子邮件的方式 C#

            MailMessage mail = new MailMessage();
            mail.To.Add(srEmail);
            mail.From = new MailAddress("[email protected]", srSender);
            mail.Subject = srEmailTitle;
            mail.Body = srEmailBody;
            mail.IsBodyHtml = true;
            mail.SubjectEncoding = System.Text.Encoding.UTF8;
            mail.BodyEncoding = System.Text.Encoding.UTF8;
            SmtpClient smtp = new SmtpClient();
            smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
            smtp.UseDefaultCredentials = true;
            smtp.Host = "127.0.0.1";
            smtp.Port = 25;
            smtp.Send(mail);

这是 IIS 服务器配置

在此处输入图片描述

非常感谢您的帮助

答案1

对于处理邮件的每个 SMTP 服务器，您都会获得一个Received标头。就您而言，当您的应用程序通过 SMTP 连接到本地主机并首次注入邮件时，您会获得一个标头，而当 IIS 系统将电子邮件传递到 HotMail 或 GMail 服务器时，您会获得第二个标头。

这绝对是正常的，也是意料之中的。

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