c#发送邮件的简单封装类

 1   public class EmailSender
 2   {
 3       private string smtpServer;
 4       private int smtpPort;
 5       private string senderEmail;
 6       private string senderPassword;
 7       private string subjectPrefix;
 8       private string emailContext;
 9 
10       /// <summary>
11       /// Constructor for EmailSender class.
12       /// </summary>
13       /// <param name="smtpServer">SMTP server address.</param>
14       /// <param name="smtpPort">SMTP server port.</param>
15       /// <param name="senderEmail">Sender's email address.</param>
16       /// <param name="senderPassword">Sender's email password.</param>
17       /// <param name="subjectPrefix">Email subject prefix.</param>
18       /// <param name="emailContext">Email content.</param>
19       public EmailSender(string smtpServer, int smtpPort, string senderEmail, string senderPassword, string subjectPrefix, string emailContext)
20       {
21           this.smtpServer = smtpServer;
22           this.smtpPort = smtpPort;
23           this.senderEmail = senderEmail;
24           this.senderPassword = senderPassword;
25           this.subjectPrefix = subjectPrefix;
26           this.emailContext = emailContext;
27       }
28 
29       /// <summary>
30       /// Sends an email.
31       /// </summary>
32       /// <param name="recipientEmail">Recipient's email address.</param>
33       /// <param name="ccEmails">List of CC email addresses.</param>
34       /// <param name="attachmentFilePath">Attachment file path.</param>
35       public void SendMail(string recipientEmail, string[] ccEmails, string attachmentFilePath = "")
36       {
37           try
38           {
39               SmtpClient smtp = new SmtpClient(smtpServer, smtpPort);
40               smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
41               smtp.Credentials = new NetworkCredential(senderEmail, senderPassword);
42 
43               MailMessage message = new MailMessage();
44               message.From = new MailAddress(senderEmail);
45               message.To.Add(new MailAddress(recipientEmail));
46               message.Subject = $"{subjectPrefix} ";
47               message.Body = $"{emailContext}";
48               message.BodyEncoding = Encoding.UTF8;
49               message.IsBodyHtml = true;
50 
51               if (ccEmails != null && ccEmails.Length > 0)
52               {
53                   foreach (string ccEmail in ccEmails)
54                   {
55                       message.CC.Add(new MailAddress(ccEmail));
56                   }
57               }
58 
59               if (File.Exists(attachmentFilePath))
60               {
61                   // Add attachment
62                   Attachment attachment = new Attachment(attachmentFilePath, MediaTypeNames.Application.Octet);
63                   attachment.ContentDisposition.CreationDate = File.GetCreationTime(attachmentFilePath);
64                   attachment.ContentDisposition.ModificationDate = File.GetLastWriteTime(attachmentFilePath);
65                   attachment.ContentDisposition.ReadDate = File.GetCreationTime(attachmentFilePath);
66                   message.Attachments.Add(attachment);
67               }
68 
69               smtp.Send(message);
70               Console.WriteLine("Email sent successfully!");
71           }
72           catch (Exception ex)
73           {
74               Console.WriteLine(ex.Message);
75           }
76       }
77   }

源码地址：https://github.com/yycb1994