发送电子邮件的后台任务

假设您使用内置 SmtpClient 你可以使用 SmtpClient.SendMailAsync 方法

smtpClient.SendMailAsync(new MailMessage{ ... });

将指定的邮件发送到SMTP服务器以作为异步操作传递

调用StartNew在功能上等同于使用任务的一个构造函数创建任务,然后调用task.Start方法来计划任务的执行。

Task.Factory.StartNew(() => {
         //do somethings
});

例子:

Task.Factory.StartNew(() => {
         SendMail("Hello world", "email@yahoo.com", "TEST");
});

public static bool SendMail(string subject, string to, string body)
    {
        string fromMailAddress = ConfigurationManager.AppSettings["MailAddress"];
        string fromMailPassword = ConfigurationManager.AppSettings["MailPassword"];
        string fromMailName = ConfigurationManager.AppSettings["MailName"];

        var networkConfig = new NetworkCredential(fromMailAddress, fromMailPassword);
        var mailServer = new SmtpClient()
        {
            Host = ConfigurationManager.AppSettings["SmtpHost"],
            UseDefaultCredentials = false,
            Credentials = networkConfig
        };
        if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["SmtpPort"]))
            mailServer.Port = Convert.ToInt32(ConfigurationManager.AppSettings["SmtpPort"]);

        var message = new MailMessage()
        {
            Subject = subject,
            SubjectEncoding = Encoding.UTF8,
            IsBodyHtml = true,
            BodyEncoding = Encoding.UTF8,
        };

        //message send config
        message.To.Add(new MailAddress(to));
        message.From = new MailAddress(fromMailAddress, fromMailName);
        message.Body = body;

        try
        {
            mailServer.SendAsync(message, null);
        }
        catch (Exception ex)
        {
            return false;
        }

        return true;
    }