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C#发送邮件

news 2025/8/15 6:45:15

基础调用类：

public class EmailHelper{/// <summary>/// 发件人名称/// </summary>public string MailName { get; set; }/// <summary>/// 收件人/// </summary>public string MailTo { get; set; }/// <summary>/// 密送/// </summary>public string MailBCC { get; set; }/// <summary>/// 抄送/// </summary>public string MailCC { get; set; }/// <summary>/// 主题/// </summary>public string MailSubject { get; set; }/// <summary>/// 内容/// </summary>public string MailHTMLBody { get; set; }/// <summary>/// 附加/// </summary>public string MailAttachments { get; set; }public string MailAttachments2 { get; set; }//第二个附件public bool Send(ref string message){try{//發送郵件            MailMessage myEmail = new MailMessage();myEmail.From = new MailAddress(string.Format("{0}@xxxxx.com.cn", MailName));//mail from//myEmail.To.Add(new MailAddress(MailTo));string[] MailToAll = MailTo.Split(';');for (int i = 0; i < MailToAll.Length; i++){myEmail.To.Add(new MailAddress(MailToAll[i]));}// 設定密送 2022-10-21 tomif (!string.IsNullOrEmpty(MailBCC)){string[] MailBCCAll = MailBCC.Split(';');for (int i = 0; i < MailBCCAll.Length; i++){myEmail.Bcc.Add(new MailAddress(MailBCCAll[i]));}}myEmail.Subject = MailSubject;//郵件主題if (MailAttachments != null){myEmail.Attachments.Add(new Attachment(MailAttachments));}//myEmail.Attachments.Add(new Attachment(MailAttachments));if (MailAttachments2 != null){myEmail.Attachments.Add(new Attachment(MailAttachments2));}AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(MailHTMLBody, null, "text/html");myEmail.AlternateViews.Add(htmlBody);myEmail.BodyEncoding = Encoding.UTF8; //編碼格式myEmail.Priority = MailPriority.Normal; //重要性 SmtpClient smtp = new SmtpClient();smtp.UseDefaultCredentials = true;smtp.Port = 25;smtp.Host = "10.3.1.1";smtp.EnableSsl = false;smtp.Send(myEmail);message = "发送成功";return true;}catch (System.Exception ex){message = ex.ToString();return false;}}}

调用类：

 //郵件發送public bool emails(string MailFrom, string MailTo, string MailSubject, string Content, string FilePath){try{EmailHelper EMAIL = new EmailHelper();messageString = "生成成功";EMAIL.MailName = MailFrom + System.DateTime.Now.ToString("yyyyMMdd");EMAIL.MailTo = MailTo;//EMAIL.MailTo = mEmailResult;//EMAIL.MailCC = "Kay@xxxxx.com.cn;";//EMAIL.MailBCC = "Kay@xxxxx.com.cn";EMAIL.MailSubject = MailSubject + DateTime.Now.ToString("yyyy-MM-dd");EMAIL.MailHTMLBody = "<table>";EMAIL.MailHTMLBody = "<table><tr><td>Dear Sirs：</td></tr><tr><td>&nbsp;</td></tr><tr><td style='color:red'>" + Content + "</td></tr>";EMAIL.MailHTMLBody += "<tr><td><span style='background:aqua;mso-highlight:aqua'></span></td></tr></table>";//EMAIL.MailAttachments = fileName;EMAIL.MailAttachments = FilePath;resultBool = EMAIL.Send(ref messageString);return true;if (!resultBool){messageString = "郵件發送失敗！" + messageString;return false;}}catch (Exception ex){return false;}}

实例：

            string filePath = "产量.xlsx"; // 替换为你的文件路径MailFrom = "Information";//发件人MailTo = "Kay@xxxxx.com.cn;Dai@xxxxx.com.cn";//收件人MailSubject = "测试数据";//主题Content ="" +Line_N + "-每小时产量.xlsx 附件，请查收！";//附件if (emails(MailFrom, MailTo, MailSubject, Content, filePath)){MessageBox.Show("发送成功");}else{MessageBox.Show("发送失败");}

以上代码可以在项目中添加一个按钮进行测试。