发送SMTP邮件客户端和服务器无法通信，因为它们不具有通用算法SMTP

发布于 2025-01-18 03:51:45 字数 1184 浏览 2 评论 0原文

我正在尝试使用SMTP生成电子邮件，但我不想添加Creadentials我的代码。在我本地的PC上工作正常，但是在服务器上，

MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient(SmtpServer_con);
mail.From = new MailAddress(MailFrom);
mail.To.Add(emailToID);
htmlString = @"<html><body>";
htmlString = htmlString + EmailBody;
htmlString = htmlString + "</body></html>";
mail.Subject = EmailSubject;
mail.Body = htmlString;
mail.IsBodyHtml = true;
if (SenderEmailID.ToString() != "")
{
    SmtpServer.Credentials = new System.Net.NetworkCredential(SenderEmailID, SenderEmailPassword);
    SmtpServer.Port = int.Parse(Port);
    if (SSL == "1")
    {
        SmtpServer.UseDefaultCredentials = true;
    }
    else
    {
        SmtpServer.UseDefaultCredentials = false;
    }
}

else
{
    SmtpServer.UseDefaultCredentials = true;
}
try
{
    SmtpServer.Send(mail);
    CtlCommon.CreateErrorLog("GenerateEmail ", "Sent Succesfully");
}

如果我将SSL设置为TURE，

则会给我错误
失败发送电子邮件客户端和服务器无法通信，因为它们不具有通用算法

，如果我将SSL用作false并尝试使用我的凭据，我会遇到以下的错误

SMTP服务器需要安全连接或未对客户端进行身份验证5.7.57

客户希望在没有凭据的情况下发送电子邮件

原文

I am trying generate email using SMTP but i dont want to add creadentials my code. At my local PC is working fine but on server it is giving me error

MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient(SmtpServer_con);
mail.From = new MailAddress(MailFrom);
mail.To.Add(emailToID);
htmlString = @"<html><body>";
htmlString = htmlString + EmailBody;
htmlString = htmlString + "</body></html>";
mail.Subject = EmailSubject;
mail.Body = htmlString;
mail.IsBodyHtml = true;
if (SenderEmailID.ToString() != "")
{
    SmtpServer.Credentials = new System.Net.NetworkCredential(SenderEmailID, SenderEmailPassword);
    SmtpServer.Port = int.Parse(Port);
    if (SSL == "1")
    {
        SmtpServer.UseDefaultCredentials = true;
    }
    else
    {
        SmtpServer.UseDefaultCredentials = false;
    }
}

else
{
    SmtpServer.UseDefaultCredentials = true;
}
try
{
    SmtpServer.Send(mail);
    CtlCommon.CreateErrorLog("GenerateEmail ", "Sent Succesfully");
}

if i set ssl as true i am getting below errors