[VB.NET源码]发送邮件的示例代码资源-CSDN文库

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resx：3个

pdb：1个

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标题中的 "[VB.NET源码]发送邮件的示例代码" 提示我们，这是一个关于使用VB.NET编程语言编写发送电子邮件的代码示例。VB.NET是Microsoft .NET框架的一部分，用于开发Windows应用程序和其他网络服务。在.NET环境中，我们可以使用System.Net.Mail命名空间中的类来实现邮件的发送。描述中提到的博客链接虽然无法在这里访问，但通常博主会在博客上分享更多的源代码和教程，这对于学习和理解VB.NET编程以及邮件发送的实践操作非常有帮助。基于提供的标签"VB.NET"和".NET"，我们知道这将涉及到使用.NET框架进行开发。".NET 源码"表明我们将探讨的是具体的源代码实现，而不仅仅是概念或理论。压缩包中的文件名"www.pudn.com.txt"可能是记录了更多相关信息或者链接的文本文件，而"VB.NET - NET Framework - How-To Send Mail"很可能是详细的教程或者源代码文件，指导如何在VB.NET中使用.NET Framework发送邮件。在VB.NET中，发送邮件主要涉及以下知识点： 1. **System.Net.Mail命名空间**：这是.NET框架提供的一个关键组件，包含了处理电子邮件所需的所有类。如SmtpClient、MailMessage、AlternateView等。 2. **SmtpClient类**：负责通过SMTP（Simple Mail Transfer Protocol）协议与邮件服务器交互，完成邮件的发送。我们需要设置其属性，如SMTP服务器地址、端口、用户名、密码和验证方式。 3. **MailMessage类**：表示一封电子邮件，包括发件人、收件人、主题、正文和附件等信息。可以使用它来构建邮件的结构。 4. **SmtpDeliveryMethod枚举**：定义了邮件发送的方式，如网络发送（Network）或通过文件系统（PickupDirectoryFromIis）。 5. **SmtpClient.Send方法**：使用配置好的SmtpClient实例发送邮件。 6. **网络认证**：根据邮件服务器的要求，可能需要使用NetworkCredential类提供登录凭据，进行身份验证，如基本身份验证或NTLM身份验证。 7. **SSL/TLS安全连接**：对于需要加密连接的SMTP服务器，可以通过设置SmtpClient.UseDefaultCredentials和SmtpClient.EnableSsl属性来启用SSL或TLS。 8. **附件**：如果邮件需要包含附件，可以使用Attachment类，并添加到MailMessage的Attachments集合中。 9. **HTML和纯文本**：MailMessage类支持发送HTML格式的邮件，通过AlternateView类可以同时添加HTML和纯文本视图，以满足不同邮件客户端的显示需求。 10. **异常处理**：在实际编程中，应该对可能出现的异常进行捕获和处理，如网络连接问题、认证失败等。通过理解和应用这些知识点，开发者可以编写出完整的VB.NET邮件发送程序。对于初学者，阅读并分析示例代码，动手实践，是掌握这个功能的好方法。同时，参考提供的博客或其他在线资源，可以加深理解并解决可能遇到的问题。

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.rar （15个子文件）

VB.NET - NET Framework - How-To Send Mail

frmAbout.resx 36KB

AssemblyInfo.vb 3KB

bin

VB.NET How-To Send Mail.pdb 56KB

VB.NET How-To Send Mail.exe 196KB

frmStatus.resx 13KB

frmMain.vb 65KB

obj

Debug

VB.NET How-To Send Mail.vbproj 5KB

frmAbout.vb 19KB

VB.NET How-To Send Mail.vbproj.user 2KB

VB.NET How-To Send Mail.suo 7KB

VB.NET How-To Send Mail.sln 942B

frmStatus.vb 6KB

frmMain.resx 101KB

ReadMe.htm 4KB

www.pudn.com.txt 218B

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>ReadMe</title> <meta content="JavaScript" name="vs_defaultClientScript"> <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema"> <meta content="Microsoft FrontPage 5.0" name="GENERATOR"> <meta content="FrontPage.Editor.Document" name="ProgId"> <meta content="Microsoft Visual Studio.NET 7.0" name="Originator"> </head> <body> <h1> .NET Framework: Send Email</h1> <p>This sample shows how to send email over SMTP using classes in the System.Web.Mail namespace. </p> <h2>Featured Highlights:</h2> <UL> <LI> This application has a single Windows Form with controls similar to the Microsoft Outlook email client. <LI> When the Form loads it checks to make sure the user has the SMTP Service installed on their machine and that it is running. <LI> Simple validation is performed on the "To" and "From" email address fields, with the errors displayed using an ErrorProvider control.</LI></UL> <H2>Requirements:</H2> <P><STRONG>1.</STRONG> SMTP Service must be installed and running. SMTP is an option installed with IIS.</P> <P><STRONG>2. </STRONG>To send mail the SmtpServer property must be set to the IP address or server name where the SMTP Server is running. In most cases this is the "localhost" machine. As such, the SmtpServer property value can either be the friendly name, "localhost", or "127.0.0.1". The latter is the default for this application. If you have any trouble sending mail, check to make sure the SmtpServer property is properly set in the code.</P> <P>To find the SMTP server name, do the following: </P> <P>a) Open the IIS snap-in (Start | Control Panel | Administrative Tools | Internet Information Services). (Note: On Win2K this is the Internet Services Manager) </P> <P>b) Expand the Default SMTP Virtual Server node (the exact name of this node may vary by operating system). </P> <P>c) Click Domains. In the right pane you will see a list of Domain Names. You may set the SmtpServer property to one of these names or their corresponding IP addresses. </P> <P><STRONG>3. </STRONG>The Default SMTP Virtual Server must also be running. Realize that it is possible for the SMTP Service to be running, but the Default SMTP Server in IIS to be stopped. There is a difference between the service itself and the actual server run by the service. It is akin to having IIS running with a particular Web or FTP site stopped. IIS, the service, is still running. But the particular Web or FTP site is not. </P> <P>If your Default SMTP Virtual Server is not running, a red X icon will be visible over its node in the IIS snap-in. To start the Server, right-click its node and select Start. </P> <P><STRONG>4. </STRONG>Finally, the Relay Restrictions must be properly set. To do this: </P> <P>a) In IIS, right-click Default SMTP Virtual Server and select Properties. </P> <P>b) In the Properties dialog click the Access tab. </P> <P>c) Click Relay. </P> <P>d) In the Relay Restrictions dialog, check "All except the list below". The bottom checkbox can be left checked or unchecked. </P> <P>e) Click OK twice to effect the change and clear the properties dialogs.</P> <h2>Running the Sample:</h2> <P>There are no special instructions for running the sample other than those listed in the Requirements section.</P> <h3>See also</h3> <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemWebMail.asp"> System.Web.Mail Namespace</a> </body> </html>

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