Question

我已经尝试过almast所有内容，但是在所有信息都正确的时候它会不断给我这个消息（我想是的）。

这是错误：

System.Net.Mail.SmtpException：地址的主机名无效： yakovmora1@gmail.com。 System.ArgumentException：无效的Unicode 在索引9处找到的代码点。参数名称：strInput at System.Text.Normalization.Normalize（String strInput，NormalizationForm normForm）

我在ASPX.CS中的代码是：

  protected void Sbutton_Click(object sender, EventArgs e)
    {     
        string Name = Request.Form["Name"];         
        string email = Request.Form["email"];
        string message = Request.Form["Message"];
        if (CheckFields(Name, email, message, ref  Label1) == true)
        {
            try
            {
                MailMessage myEmail = new MailMessage()
                {
                    Subject = "Message from website user: [" + Name + "]",
                    Body = "Email: " + email + Environment.NewLine + Environment.NewLine + message,
                    IsBodyHtml = false,
                    From = new MailAddress(email, Name),

                };

                myEmail.To.Add(new MailAddress("yakovmora1@gmail.com‏", "IsraeCoreLx‏"));

                SmtpClient server = new SmtpClient();
                server.Send(myEmail);
                Label1.Text = "Message Sent";
            }
            catch (Exception ex)
            {
                Label1.Text = "error sending message <br/><br/>" + ex.ToString();
            }
            if (Label1.Text != "Message Sent")
            {
                Label1.Text = "trying again";
                #region trying again
                try
                {
                    MailMessage myEmail = new MailMessage()
                    {
                        Subject = "Message from website user: [" + Name + "]",
                        Body = "Email: " + email + Environment.NewLine + Environment.NewLine + message,
                        IsBodyHtml = false,
                        From = new MailAddress(email, Name)


                    };

                    myEmail.To.Add(new MailAddress("yakovmora1@gmail.com‏", "IsraeCoreLx‏‏"));

                    SmtpClient server = new SmtpClient();
                    server.Port = 25;
                    server.Send(myEmail);
                    Label1.Text = "Message Sent";
                }
                catch (Exception ex)
                {
                    Label1.Text = "error sending message <br/><br/>" + ex.ToString();
                }
                #endregion
            }
            if (Label1.Text == "Message Sent")
            {
                CleanFields( Name,  email,  message ,ref Label1);
            }
        }

    }


    private void CleanFields(string Name, string email, string message, ref Label Label1)
    {

       Request.Form["Name"] = "";
        Request.Form["email"] = "";
        Request.Form["message"] = "";

    }



    private Boolean CheckFields(string Name, string email, string message, ref Label Label1)
    {
        if (Name != "")
        {

            if (IsEmailValid(email) == true)
            {
                if (message != "")
                    return true;
                else
                    Label1.Text = "Your message is empty.";
            }
            else
            {
                Label1.Text = "Your email is invalid.";
            }
        }


        else
        {
            Label1.Text = "Please fill in your Name.";
        }
        return false;
    }

    private Boolean IsEmailValid(string EmailAddr)
    {
        if (EmailAddr != null || EmailAddr != "")
        {
            Regex n = new Regex("(?<user>[^@]+)@(?<host>.+)");
            Match v = n.Match(EmailAddr);

            if (!v.Success || EmailAddr.Length != v.Length)
                return false;
            else
                return true;
        }
        else
            return false;
    }

Answer 1

错误不言自明：

System.Net.Mail.SmtpException:
The address has an invalid host name: yakovmora1@gmail.com‏.

System.ArgumentException: Invalid Unicode code point found at index 9.
Parameter name: strInput

at System.Text.Normalization.Normalize(String strInput, NormalizationForm normForm)

看一下这个字符串：yakovmora1@gmail.com

第9个字符是1，这对我来说似乎很好，但我发现你将它直接嵌入到你的源代码中（一个非常糟糕的主意，但没关系）。您是否使用正确的编码保存*.cs个文件？确保使用UTF-8或UTF-16（Visual Studio＆gt; 文件＆gt; 高级保存选项＆gt; 编码）。

Answer 2

在发送电子邮件之前，您可能会在调试器中查看邮件消息值，或者调用“ToString”方法。在这种情况下，在.NET 3.5或更早版本中，有一个错误会更改邮件消息对象中的字段值，导致此失败。

我也遇到了类似的bug，并解决了它。你可以在这里看到详细信息： MailMessage "From" property assignment indirectly causes exception

希望这对你有帮助！

System.Net.Mail.SmtpException：地址的主机名无效

2 个答案: