无法在 asp.net 中发送 email

Question

<div id="id04" class="modal">
                <form class="modal-content" action="#">
                    <span onclick="document.getElementById('id04').style.display='none'" class="close" title="Close Modal">&times;</span>
                    <div class="modalcontainer">
                        <p style="font-family: 'Playfair Display', serif; font-size: 20px;">Reset Password</p>
                        <asp:TextBox ID="txt_resetEmail" CssClass="inputtxt" PlaceHolder="Email Address" runat="server" TextMode="Email"></asp:TextBox>
                        <asp:TextBox ID="txt_resetPassword" CssClass="inputtxt" PlaceHolder="New Password" runat="server" TextMode="password" pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}" ></asp:TextBox>
                        <asp:TextBox ID="txt_confirmNewPassword" CssClass="inputtxt" PlaceHolder="Confirm Password" runat="server" TextMode="password"></asp:TextBox>
                        <asp:CompareValidator
                            ID="CompareValidator2"
                            runat="server"
                            ErrorMessage="Passwords do not match."
                            ControlToValidate="txt_confirmNewPassword"
                            ControlToCompare="txt_resetPassword"
                            Operator="Equal" Type="String"
                            ForeColor="Red">
                        </asp:CompareValidator>

                        <asp:Button ID="Button1" class="btnsignin" runat="server" Text="Confirm" OnClick="btnSignIn_Confirm"/>
                        //when the user clicks on this button, email is being sent

                    </div>

                    <div class="register">
                        Don't have an account? 
                        <a onclick="document.getElementById('id01').style.display='none';document.getElementById('id02').style.display='block';">Create an Account
                        </a>
                        <br />
                        <a style="color: #EC7063; font-size: 12px;"
                            onclick="document.getElementById('id01').style.display='none';document.getElementById('id03').style.display='block';">Sign in as Admin</a>
                    </div>

                    

                </form>
            </div>

//backend code in the MasterPage.master.cs

protected void btnSignIn_Confirm(object sender, EventArgs e)
    {
        System.Diagnostics.Debug.WriteLine("come in");

        System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
        mail.To.Add("to email");
        mail.From = new MailAddress("from email", "head", System.Text.Encoding.UTF8);
        mail.Subject = "This mail is send from asp.net application";
        mail.SubjectEncoding = System.Text.Encoding.UTF8;
        mail.Body = "This is Email Body Text";
        mail.BodyEncoding = System.Text.Encoding.UTF8;
        mail.IsBodyHtml = true;
        mail.Priority = MailPriority.High;
        SmtpClient client = new SmtpClient();
        client.Credentials = new System.Net.NetworkCredential("from email", "password");
        client.Port = 587;
        client.Host = "smtp.gmail.com";
        client.EnableSsl = true;

        try
        {
            client.Send(mail);
            System.Diagnostics.Debug.WriteLine("Can send email");
        }
        catch (Exception)
        {
            System.Diagnostics.Debug.WriteLine("soemthing wrong");
        }
    }

the system.Diagnostic.Writeline("") is also not writing anything on my output so I have no idea where my code is going

when I click on the button, my webpage just refreshes and nothing is being shown, I have created a real email for the "mail.from" in my code, and use my personal email as the "mail.ToAdd". But I did not receive anything

Answer 1

First try turn on less secure apps on for your google account to that fallow this link if not work's try providing Host value in Constructor of SmptClient insted of doing

  client.Host = "smtp.gmail.com";

do

  SmtpClient client = new SmtpClient("smtp.gmail.com");