腾讯企业邮箱 SMTP发送超时。。。 求解决方案 T_T 折腾好久了

[史上最菜]

                MailMessage mailObj = new MailMessage();
                mailObj.From = new MailAddress(Common.AppConfig.GetEmailUserName());  //发送人邮箱地址[e-mail]
                mailObj.To.Add(Common.AppConfig.GetPutEmailUserName());   //收件人邮箱地址 
                mailObj.Subject = "测试";    //主题
                mailObj.Body =“测试”;    //正文
                mailObj.IsBodyHtml = true;
                SmtpClient client = new SmtpClient(Common.AppConfig.GetEmailHost());
                client.Port = Common.AppConfig.GetEmailHostPort();
                client.UseDefaultCredentials = true;
                client.EnableSsl = true;
                client.UseDefaultCredentials = true;
                client.Credentials = new NetworkCredential(Common.AppConfig.GetEmailUserName(), Common.AppConfig.GetEmailPassword());  //发送人的登录名和密码
                client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                client.EnableSsl = true;
                try
                {
                    client.Send(mailObj);
                }
                catch (Exception)
                {

                }

[史上最菜]

有大佬吗。。

[天空之枫]

SMTP服务器的几个端口（25,465）都试下,还有是否是ssl加密发送

[正怒月神]

https://blog.csdn.net/hanjun0612/article/details/54288854