System.Net.Mail.SmtpException:地址有一个无效的主机名

本文关键字:无效 主机 有一个 地址 Net Mail SmtpException System | 更新日期: 2023-09-27 18:09:01

我已经尝试了几乎所有的东西,但它一直给我这个消息,而所有的信息都是正确的(我认为是这样)。

错误提示:

System.Net.Mail。SmtpException:地址有一个无效的主机名:yakovmora1@gmail.com‏。系统。ArgumentException: Unicode无效在索引9处找到代码点。参数名称:strInput atSystem.Text.Normalization。Normalize(字符串strInput, NormalizationFormnormForm)

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;
    }

System.Net.Mail.SmtpException:地址有一个无效的主机名

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,但我看到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文件?确保使用UTF-8或UTF-16 (Visual Studio>File>Advanced Save Options>Encoding)。

在发送电子邮件之前,您可以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或更早的版本中,有一个错误会改变邮件消息对象中的字段值,从而导致以后的失败。

我也遇到了类似的bug,并解决了它。你可以在这里看到细节:MailMessage"From"属性分配间接导致异常

希望这对你有帮助!