通过Gmail发送电子邮件会引发错误

Question

Im working on an web application i got stuck between this email sending code.I am working on contact page where anyone can send you email as you guys know that.This code in working fine but i can't pass through this error

as i said im working with Asp.Net Mvc so here is my POST controller im using gmail account so that it won't conflict between any mail services.

  public ActionResult sendemail()
    {
        return View();
    }

    [HttpPost]
    public ActionResult sendemail(string to, string from, string subject, string body, string pwd)
    {
        SmtpClient client = new SmtpClient();
        client.Host = "smtp.gmail.com";
        client.Port = 587;
        client.EnableSsl = true;

        client.UseDefaultCredentials = true;
        client.Credentials = new NetworkCredential("faseehyasin12@gmail.com", pwd);
        client.DeliveryMethod = SmtpDeliveryMethod.Network;

        MailMessage mail = new MailMessage();
        mail.To.Add(to);
        mail.From = new MailAddress(from);
        mail.Subject = subject;
        mail.Body = body;
        try
        {
            client.Send(mail);
            Response.Write("ok");
            return View();
        }
        catch(Exception e)
        {
            throw e;
        }

    }

and here is my view and i want to ask do i really need a password to send email to someone in this code ?

and my GET controller is empty with only written code is return view() so i won't bother to take ss for that. i have also allowed "less secure app" but it still gives me this error. Need Help

Answer 1

First go to https://myaccount.google.com/lesssecureapps and change status as open. And go to https://accounts.google.com/b/0/displayunlockcaptcha and click Continue button.

Please try with following code.

string host = "smtp.gmail.com";
int port = 587;
bool ssl = true;
string fromAddress = "faseehyasin12@gmail.com";
string fromPassword = "your password here";
using (var mail = new MailMessage())
{
    string subject = "Test";
    string body = "Mail test";
    mail.From = new MailAddress(fromAddress);
    mail.Subject = subject;
    mail.IsBodyHtml = true;
    mail.Body = body;
    mail.To.Add("mail@domain.com");
    using (var smtpServer = new SmtpClient(host,port))
    {
        smtpServer.UseDefaultCredentials = false;
        smtpServer.Credentials = new System.Net.NetworkCredential(fromAddress, fromPassword);
        smtpServer.EnableSsl = ssl;
        smtpServer.Send(mail);
    }

}