c# - 无法通过 gmail smtp : keeps waiting for localhost? 发送邮件

Question

protected void Button1_Click(object sender, EventArgs e)
    {
        SmtpClient mail = new SmtpClient();
        mail.UseDefaultCredentials = false;
        mail.Host="smtp.gmail.com";
        mail.Port=465;
        mail.Credentials=new NetworkCredential("b.soham1991","*******");
        mail.DeliveryMethod = SmtpDeliveryMethod.Network;
        mail.EnableSsl = true;

        mail.Timeout = 1000000;

        mail.Send("b.soham1991@gmail.com", "soham.elf@gmail.com", "Hi", "via gmail");
        Response.Write("success!");
    }

Response.Write 永远不会执行，最终连接超时。我错过了什么？

Answer 1

我认为您使用了错误的端口。

protected void Button1_Click(object sender, EventArgs e)
{
    SmtpClient mail = new SmtpClient();
    mail.UseDefaultCredentials = false;
    mail.Host="smtp.gmail.com";
    mail.Port=587; //new port!
    mail.UseDefaultCredentials = false,
    mail.Credentials=new NetworkCredential("b.soham1991","*******");
    mail.DeliveryMethod = SmtpDeliveryMethod.Network;
    mail.EnableSsl = true;

    mail.Timeout = 1000000;

    mail.Send("b.soham1991@gmail.com", "soham.elf@gmail.com", "Hi", "via gmail");
    Response.Write("success!");
}

此外，请务必使用 System.Net.Mail 而不是 System.Web.Mail

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