使用 Gmail 发送邮件

Question

public static bool SendMail(string toList, string from, string ccList, string subject, string body)
{
    MailMessage message = new MailMessage();
    SmtpClient smtpClient = new SmtpClient();

    try
    {
        MailAddress fromAddress = new MailAddress(from);
        message.From = fromAddress;
        message.To.Add(toList);
        if (ccList != null && ccList != string.Empty)
            message.CC.Add(ccList);
        message.Subject = subject;
        message.IsBodyHtml = true;
        message.Body = body;

        smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
        smtpClient.EnableSsl = true;
        smtpClient.Timeout = 30000;
        smtpClient.Host = "smtp.gmail.com";   // We use gmail as our smtp client
        smtpClient.Port = 587;
        smtpClient.UseDefaultCredentials = true;
        smtpClient.Credentials = new System.Net.NetworkCredential("myemail@gmail.com", "mypassword");


        smtpClient.Send(message);
        return true;
    }
    catch (Exception ex)
    {
        return false;
    }
}

代码看起来没问题，但还是不行，我不知道为什么？ 使用 gmail 的 smtp 发送邮件的任何其他方式。

Answer 1

试试

var client = new SmtpClient("smtp.gmail.com", 587)
{
  Credentials = new NetworkCredential("myusername@gmail.com", "mypwd"),
  EnableSsl = true
};

client.Send("myusername@gmail.com", "myusername@gmail.com", "test", "testbody");

如果UseDefaultCredentials 属性设置为false，则Credentials 属性中设置的值将用于连接到服务器时的凭据。在这里，您将UseDefaultCredentials 设置为true，然后它将忽略您提供的凭据。

Answer 2

请尝试使用端口 25。它对我有用。同时删除 UseDefaultCredentials 的设置。

更新： 587 端口也为我工作。所以我认为 UseDefaultCredentials 是您代码中的唯一问题。它应该设置为 false。

public static void SendMail(string ToMail, string FromMail, string Cc, string Body, string Subject)
{
    SmtpClient smtp = new SmtpClient("smtp.gmail.com", 25);
    MailMessage mailmsg = new MailMessage();

    smtp.EnableSsl = true;
    smtp.Credentials = new NetworkCredential("email","password");

    mailmsg.From = new MailAddress(FromMail);
    mailmsg.To.Add(ToMail);

    if (Cc != "")
    {
       mailmsg.CC.Add(Cc);
    }
    mailmsg.Body = Body;
    mailmsg.Subject = Subject;
    mailmsg.IsBodyHtml = true;

    mailmsg.Priority = MailPriority.High;

    try
    {
       smtp.Timeout = 500000;
       smtp.Send(mailmsg);
       mailmsg.Dispose();
    }
    catch (Exception ex)
    {
       throw ex;
    }
}