C#/.NET开发问题

Is there a way I can tell whether an SMTP server is expecting a client to connect using quot;implicitquot; SSL versus quot;explicitquot; SSL?(有没有办法可以判断 SMTP 服务器是否期望客户端使用“隐式连接?SSL 与“显式SSL?) - IT屋-程序员软件开发
Receiving email and downloading attachment through a C# Application(通过 C# 应用程序接收电子邮件和下载附件)
How to send email through IIS7?(如何通过 IIS7 发送电子邮件?)
How can I make email go to a local folder during testing?(如何在测试期间将电子邮件发送到本地文件夹?)
Sending emails in asp.net with specific name instead of sender email(在 asp.net 中使用特定名称而不是发件人电子邮件发送电子邮件)
C# mailer - 550 Access denied - Invalid HELO name(C# 邮件程序 - 550 访问被拒绝 - HELO 名称无效)
C# SMTP authentication failed but credentials are correct(C# SMTP 身份验证失败,但凭据正确)
performance of bulk emailing using system net mail(使用系统网络邮件的批量发送电子邮件的性能)
How to get the SMTP server from email address(如何从电子邮件地址获取 SMTP 服务器)
Access denied when sending a mail from C# programm(从 C# 程序发送邮件时访问被拒绝)
Is there .NET library for email sending via PROXY?(是否有用于通过代理发送电子邮件的 .NET 库?)
Send an email using SMTP and control sender address(使用 SMTP 发送电子邮件并控制发件人地址)