在防火墙后面发送邮件时出现问题
我厌倦了通过 SSL 使用 SMTP 发送消息，但仍然有一个例外：
“操作超时”
我的问题是：
如何解决此问题；
如何在防火墙后面发送电子邮件！！！
谢谢，
public void SendMessage()
{
SmtpClient client = new SmtpClient("servername.ru.alt001.com");
client.Credentials = new NetworkCredential("[email protected]","password");
client.Port = 465;
client.EnableSsl = true;
MailMessage message = new MailMessage()
{
Subject = "Test Message",
Body = "Hello, this is a test !!! Kind Regards Ali Mselmi"
};
message.To.Add("[email protected]");
message.From = new MailAddress("[email protected]");
client.Send(message);
}
}
I'm tired to send message over SSL with SMTP by i still have an exeption :
"Operation timed out"
My questions is :
How to resolve this problem;
How to send an email behind the firewall !!!
Thanks,
public void SendMessage()
{
SmtpClient client = new SmtpClient("servername.ru.alt001.com");
client.Credentials = new NetworkCredential("[email protected]","password");
client.Port = 465;
client.EnableSsl = true;
MailMessage message = new MailMessage()
{
Subject = "Test Message",
Body = "Hello, this is a test !!! Kind Regards Ali Mselmi"
};
message.To.Add("[email protected]");
message.From = new MailAddress("[email protected]");
client.Send(message);
}
}
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评论（1）
这就是防火墙的要点——除非获得允许，否则人们无法访问防火墙后面的端口。
如果确实是问题所在，您需要联系防火墙所有者/管理员。
另一种可能性是您的端口号错误 - 465 是安全 smtp 的旧端口号 - 我相信 587 是推荐的端口...
That's the point of a firewall - people can't reach a port behind it unless they're allowed to.
You'll need to contact the firewall owner/admin if indeed that's the problem.
The other possibility is that you have the wrong port number - 465 is the legacy port number for secure smtp - I believe 587 is the recommended port...