在这个分步指南中，我们分享了如何使用 Aspose.Email for .NET 在 C# 中发送电子邮件。我们在此 C# 控制台应用程序中使用 Gmail SMTP 服务器发送电子邮件，但您可以在任何类型的 .NET 应用程序中使用任何 SMTP 服务器发送电子邮件。
在 C# 中发送电子邮件的步骤
- 从 NuGet 包管理器设置 Aspose.Email for .NET
- 包括以下命名空间：Aspose.Email、Aspose.Email.Clients 和 Aspose.Email.Clients.Smtp
- 使用 Aspose.Email.License 类申请许可证
- 使用 MailMessage 类创建新电子邮件
- 创建 SmtpClient 类的实例
- 设置 Gmail SMTP 客户端信息以发送电子邮件
- 使用 SmtpClient 类的 Send 方法发送 email
使用 C# 发送电子邮件的代码
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| using System; | |
| //Add Aspose.Email for .NET package reference | |
| //Use following namespaces to convert OTG to PDF format | |
| using Aspose.Email; | |
| using Aspose.Email.Clients; | |
| using Aspose.Email.Clients.Smtp; | |
| namespace SendEmailUsingSMTPServer | |
| { | |
| class Program | |
| { | |
| static void Main(string[] args) | |
| { | |
| //Set Aspose license before sending email through Gmail SMTP | |
| //using Aspose.Email for .NET | |
| Aspose.Email.License AsposeEmailLicense = new Aspose.Email.License(); | |
| AsposeEmailLicense.SetLicense(@"c:\asposelicense\license.lic"); | |
| //create an instance of MailMessage | |
| MailMessage EmailMessage = new MailMessage(); | |
| //Set email message properties which you want to specify | |
| EmailMessage.Subject = "How to Send Mail Using SMTP Server in C#"; | |
| EmailMessage.To = "ReceiverEmail@EmailServer.com"; | |
| EmailMessage.Body = "This is a test of sending email using SMTP in C#."; | |
| //Initiate an instance of SmptpClient class | |
| SmtpClient SMTPEmailClient = new SmtpClient(); | |
| //Set SMTP client properties so the email message can get through the server | |
| SMTPEmailClient.Host = "smtp.gmail.com"; | |
| SMTPEmailClient.Username = "YourEmail@gmail.com"; | |
| SMTPEmailClient.Password = "Your Gamil Password"; | |
| SMTPEmailClient.Port = 587; | |
| SMTPEmailClient.SecurityOptions = SecurityOptions.SSLExplicit; | |
| //Finally send the email message using Gmail's SMTP client | |
| SMTPEmailClient.Send(EmailMessage); | |
| } | |
| } | |
| } |
在 C# 中使用 Gmail SMTP 发送电子邮件时的问题
您可能会遇到"SMTP 服务器需要安全连接或客户端未通过身份验证"之类的异常。这是因为 Gmail 认为您的应用程序安全性较低，因此可能不允许使用其 SMTP 服务器发送电子邮件。修复 Gmail SMTP 问题 allow access to less secure apps to send email。
