一、使用Net.Mail
需要服务器认证,大部分服务器端口为25.
View Code
1 /// 2 ///用MailMessage通过需要认证的SMTP服务器发送邮件，可以发送附件3 /// 4 /// 发件箱地址，例：myaccount@5 /// 发件箱登录密码6 /// 收件箱地址，多个地址使用";"隔开，例：youraccount@7 /// 抄送地址，多个地址使用";"隔开，例：hisaccount@8 /// 邮件主题，例：MailTest9 /// 邮件内容，例：Hello10 /// 发件箱所在的SMTP服务器，例：11 public void NetSendMail(string frmAddress, string password, string toAddress, string copyTo, string mailSubject, string mailContent, string mailserver)
12 {
13 ///添加发件人地址14 MailMessage mailMsg = new MailMessage();
15 mailMsg.From = new MailAddress(frmAddress);
16 ///添加收件人地址17 string split = ";";
18 string[] toList = toAddress.Trim().Split(split.ToCharArray());
19 for (int i = 0; i < toList.Length; i++)
20 {
21 mailMsg.To.Add(toList[i].Trim());
22 }
23
24 ///添加抄送地址25 string[] ccList = copyTo.Trim().Split(split.ToCharArray());
26 for (int i = 0; i < ccList.Length; i++)
27 {
28 if (ccList[i].Trim().Length > 0)
29 {
30 .Add(ccList[i].Trim());
31 }
32 }
33
34 ///添加邮件主题35 mailMsg.Subject = mailSubject.Trim();
36 mailMsg.SubjectEncoding = Encoding.UTF8;
37
38 ///添加邮件内容39 mailMsg.Body = mailContent;
40 mailMsg.BodyEncoding = Encoding.UTF8;
41 mailMsg.IsBodyHtml = true; //正文是否为html样式42
43 ///添加邮件附件44 HttpFileCollection fileList = HttpContext.Current.Request.Files;
45 for (int i = 0; i < fileList.Count; i++)
46 { ///添加单个附件47 HttpPostedFile file = fileList[i];
48 if (file.FileName.Length <= 0 || file.ContentLength <= 0)
49 {
50 break;
51 }
52 string path = Server.MapPath("~/FileUpload/"); //附件保存在程序所在的目录FileUpload下53 string name = System.IO.Path.GetFileName(file.FileName);
54 file.SaveAs(path + name);
55 mailMsg.Attachments.Add(new .Mail.Attachment(file.FileName));
56 }
57 try
58 {
59 //实例化SmtpClient邮件发送类对象60 SmtpClient client = new SmtpClient(mailserver, 25); //大部分smtp服务器的端口是2561 //设置用于验证发件人身份的凭据62 client.Credentials = new workCredential(frmAddress, password);
63 //发送邮件64 client.Send(mailMsg);
65 Response.Write("");
66 }
67 catch
68 {
69 Response.Write("");
70 }
71 }
二、使用CDO组件
View Code
1 /// 2 ///用CDO组件通过需要认证的SMTP服务器发送邮件。3 ///添加cdosys.dll引用，可以在系统目录(如c:\winnt或c:\windows)的system32子目录中找到它(cdosys.dll)。4 /// 5 /// 发件箱地址，例：myaccount@6 /// 发件箱登录密码7 /// 收件箱地址，多个地址使用";"隔开，例：youraccount@8 /// 抄送地址，多个地址使用";"隔开，例：hisaccount@9 /// 邮件主题，例：MailTest10 /// 邮件内容，例：Hello11 /// 发件箱所在的SMTP服务器，例：12 public void CDOSendMail(string frmAddress, string password, string toAddress, string copyTo, string mailSubject, string mailContent, string mailserver)
13 {
14 try
15 {
16 CDO.Message oMsg = new CDO.Message();
17
18 oMsg.From = frmAddress; //添加发件人19
20 oMsg.To = toAddress; //多人用“;”，“,”分开,自动识别，21
22 = copyTo;
23 oMsg.Subject = mailSubject;
24 oMsg.HTMLBody = "
" + mailContent + "";
25 CDO.IConfiguration iConfg = oMsg.Configuration;
26 ADODB.Fields oFields = iConfg.Fields;
27
28 oFields["/cdo/configuration/sendusing"].Value = 2;
29 oFields["/cdo/configuration/sendemailaddress"].Value = frmAddress;
30 oFields["/cdo/configuration/smtpaccountname"].Value = toAddress;
31 oFields["/cdo/configuration/sendusername"].Value = frmAddress;
32 oFields["/cdo/configuration/sendpassword"].Value = password;
33 oFields["/cdo/configuration/smtpauthenticate"].Value = 1;
34 //value=0 代表Anonymous验证方式(不需要验证)35 //value=1 代表Basic验证方式(使用basic (clear-text) authentication.36 //The configuration sendusername/sendpassword or postusername/postpassword fields are used to specify credentials.)37 //Value=2 代表NTLM验证方式(Secure Password Authentication in Microsoft Outlook Express)38 oFields["/cdo/configuration/languagecode"].Value = 0x0804;
39 oFields["/cdo/configuration/smtpserver"].Value = mailserver;
40
41 oFields.Update();
42 oMsg.BodyPart.Charset = "gb2312";
43 oMsg.HTMLBodyPart.Charset = "gb2312";
44
45
46 //添加邮件附件47 HttpFileCollection fileList = HttpContext.Current.Request.Files;
48 for (int i = 0; i < fileList.Count; i++)
49 { ///添加单个附件50 HttpPostedFile file = fileList[i];
51 if (file.FileName.Length <= 0 || file.ContentLength <= 0)
52 {
53 break;
54 }
55 string path = Server.MapPath("~/FileUpload/"); //附件保存在程序所在的目录FileUpload下56 string name = System.IO.Path.GetFileName(file.FileName);
57 file.SaveAs(path + name);
58 oMsg.AddAttachment(file.FileName);
59 }
60
61 oMsg.Send();
62 oMsg = null;
63 }
64 catch (Exception e)
65 {
66 throw e;
67 }
68 }
三、使用JMail组件
View Code
1 /// 2 ///用JMail组件发送邮件。3 ///添加jmail.dll引用4 /// 5 /// 发件箱地址，例：myaccount@6 /// 发件箱登录密码7 /// 收件箱地址，多个地址使用";"隔开，例：youraccount@8 /// 抄送地址，多个地址使用";"隔开，例：hisaccount@9 /// 邮件主题，例：MailTest10 /// 邮件内容，例：Hello11 /// 发件箱所在的SMTP服务器，例：12 public bool JMailSendMail(string frmAddress, string password, string toAddress, string copyTo, string mailSubject, string mailContent, string mailserver)
13 {
14 try
15 {
16 MessageClass jmMessage = new MessageClass();
17 jmMessage.Charset = "gb2312";
18 jmMessage.ISOEncodeHeaders = false; //信头编码iso-8859-1字符集19 jmMessage.Encoding = "base64"; //附件的编码格式20 //jmMessage.ContentType = "text/html";//正文类型，去掉，否则正文出现乱码21
22 jmMessage.MailServerUserName = frmAddress; //发件箱登录名23 jmMessage.MailServerPassWord = password; //发件箱密码24
25 jmMessage.From = frmAddress; //发件箱26
27 jmMessage.Subject = mailSubject;
28 jmMessage.Body = mailContent;
29
30 //回执，当对方阅读了邮件后提醒是否发送回执31 jmMessage.ReturnReceipt = true;
32 jmMessage.AddNativeHeader("Disposition-Notification-To", frmAddress);//回执接受人的邮件地址33 34 //收件箱35 string split = ";";
36 string[] toList = toAddress.Trim().Split(split.ToCharArray());
37 for (int i = 0; i < toList.Length; i++)
38 {
39 jmMessage.AddRecipient(toList[i].Trim(), "", "");
40 }
41
42 //抄送43 string[] coList = copyTo.Trim().Split(split.ToCharArray());
44 for (int i = 0; i < coList.Length; i++)
45 {
46 jmMessage.AddRecipientCC(coList[i].Trim(), "", "");
47 }
48
49 ///添加邮件附件50 HttpFileCollection fileList = HttpContext.Current.Request.Files;
51 for (int i = 0; i < fileList.Count; i++)
52 { ///添加单个附件53 HttpPostedFile file = fileList[i];
54 if (file.FileName.Length <= 0 || file.ContentLength <= 0)
55 {
56 break;
57 }
58 string path = Server.MapPath("~/FileUpload/"); //附件保存在程序所在的目录FileUpload下59 string name=System.IO.Path.GetFileName(file.FileName);
60 file.SaveAs(path + name);
61 jmMessage.AddAttachment(file.FileName);
62 }
63
64 if (jmMessage.Send(mailserver, false))
65 {
66 return true;
67 }
68 else
69 {
70 return false;
71 }
72 }
73 catch (Exception)
74 {
75
76 throw;
77 }
78 }
对于JMail组件，通常我们遇到的错误是:'The message was undeliverable. All servers failed to receive the message ',这其实是JMAIL返回的错误,并不是ASP代码产生的,根本原因是MAIL SERVER拒绝了JMAIL的请求.
究其原因,是那些服务器不提供SMTP服务或者没有开启smtp服务;或是在服务器端开启了'禁止邮件中继服务'选项,也就是说不在其允许的IP段或指定范围内的空间里的程序是无法使用其SMTP服务的。解决方案：使用支持smtp的邮件服务器. 使用支持外来jmail申请验证身份，发送邮件的邮件服务器。 最好：使用自己的待遇smtp功能的企业邮局。因为外面的免费的邮局可能会有一些特殊设置，不如防止垃圾邮件，防止盗用邮件身份等等!
Jmail发送首先要通过邮件服务器验证。如果你的服务器不支持SMTP或者你的账号不能使用SMTP服务那么就无法发送。163以前的用户默认是开通POP和SMTP服务的，但新用户都不开通，需要付费才能使用。要想确定某一邮箱是否可以使用POP和SMTP，你可以用foxmail等邮件软件看能否收取该邮箱信件。
目前发现可以通过的stmp服务器有：、，也就是说可以使用该类的邮箱给其他邮箱发送邮件。
![[导入]ASP.Net环境下使用Jmail组件发送邮件](https://300zi.50zi.cn/uploadfile/img/14/773/e9bd707f14c9417951c844c5bc20ef8b.jpg)
