System.net.mail.smtpException; The server submits a protocol conflict server response as follows:

A problem has recently been sent to the mail.

Host GoDaddy port 25,80 can be used

STMP Server address: smtpout.secureserver.net

SSL not supported I'll do it. Enablessl set to False

Everything was fine before the delivery was successful ...

OK, after a few changes, the problem comes.

Error

The error is:

System.net.mail.smtpException; The server submits a protocol conflict server response as follows:

Are you thinking that the response after the colon is??? Why?

All right, the system is only responsible for the error.

Checked the MSDN.

There's a property called Smtpstatuscode.

There is an example ... As follows... Yes .... Check Status code ...

Try
{
Client. Send (message);
}
catch (Smtpexception e)
{
Console.WriteLine ("Error: {0}", E.statuscode);
}
Finally
{
Data. Dispose ();
}

After doing this, you can see the status code bird ...

Look, E.statuscode is generalfailure.

Explanation: The transaction failed to occur. You receive this error when the specified SMTP host could not be found.

A little puzzled.

Because the e-mail address of my sender is automatically generated .... I checked the slot, and replaced the dynamic generation with a fixed ...

The send was successful.

OK, the problem is in the account generation problem ...

In other words, the sender's account is wrong ...

The problem is solved ...