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C#中发送邮件代码

程序员文章站 2022-06-04 22:58:29
始找的代码只能发送无smtp验证的邮件,但现在很多email发送时都需要验证,后来查找了下msdn的帮助,找到了发送验证的代码,贴出来希望对大家有所帮助! 复制代码 代码如...
始找的代码只能发送无smtp验证的邮件,但现在很多email发送时都需要验证,后来查找了下msdn的帮助,找到了发送验证的代码,贴出来希望对大家有所帮助!
复制代码 代码如下:

public static int sendmail(string to, string body,string subject)
    {
        try
        {
            int ncontain = 0;
            ///添加发件人地址
            string from = "你的发送email";
            mailmessage mailmsg = new mailmessage();
            mailmsg.from = new mailaddress(from);
            ncontain += mailmsg.from.address.length;
            ///添加收件人地址
            mailmsg.to.add(to);
            ncontain += mailmsg.to.tostring().length;
            ///添加邮件主题
            mailmsg.subject = subject;
            mailmsg.subjectencoding = encoding.utf8;
            ncontain += mailmsg.subject.length;
            ///添加邮件内容
            mailmsg.body = body;
            mailmsg.bodyencoding = encoding.utf8;
            mailmsg.isbodyhtml = true;
            ncontain += mailmsg.body.length;
            if (mailmsg.isbodyhtml == true)
            {
                ncontain += 100;
            }
            ///发送邮件
            try
            {
                //定义发送邮件的client
                smtpclient client = new smtpclient();
                //表示以当前登录用户的默认凭据进行身份验证 
                client.usedefaultcredentials = true;
                //包含用户名和密码 
                client.credentials = new system.net.networkcredential(application.getapplicationsendmail(), application.getapplicationsendpass());
                ///设置邮件服务器主机的ip地址
                client.host = "smtp服务器ip"
                ///设置邮件服务器的端口
                client.port = 25;
                ///配置发送邮件的属性
                client.deliverymethod = smtpdeliverymethod.network;
                //system.net.mail.mailmessage message = new system.net.mail.mailmessage(strfrom, strto, strsubject, strbody); 
                mailmsg.priority = system.net.mail.mailpriority.normal;
                //client.usedefaultcredentials = false;
                ///发送邮件
                client.send(mailmsg);
                return 1;
            }
            catch (exception ex) { return 0; }
        }
        catch (exception ex) { return 0; }
    }