Sending Email

Dear Members,

I am trying to send an email. And this is what the error message I am hitting,

The specified string is not in the form required for an e-mail address.

My code works with no problems when the To address is hard coded as below,

mail.To.Add("[email protected]");

But I have a text box from which the "to" email address should be picked up. That is when the above error (in bold) appears.

Any help is very much appreciated!

Here is the code,

ASPX Page:

Code:

To Email Address: <asp:TextBox ID="toemai_Box" runat="server"></asp:TextBox>
    <p></p>
    <asp:Button ID="email_btn" runat="server" Text="Send Email" onclick="email_btn_Click"></asp:Button>

Event Handler in Code Behind:

Code:

protected void email_btn_Click(object sender, EventArgs e)
        {
            try
            {
                string to_Email = this.toemai_Box.ToString();
                //create the mail message
                MailMessage mail = new MailMessage();
                //set the addresses
                //mail.From = new MailAddress("[email protected]");
                mail.From = new MailAddress("[email protected]", "Company");
                //mail.To.Add("[email protected]");
                mail.To.Add(to_Email);
                //set the content
                mail.Subject = "Welcome to Company";
                mail.Body = "Hello user, we welcomes you!";
                //send the message

                SmtpClient smtp = new SmtpClient("localhost");
               // SmtpClient smtp = settings.Smtp.Network.Host.ToString();
                smtp.Send(mail);
                this.lblMessage.Visible = true;
                lblMessage.Text = "Mail Sent";
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message);
            }
        }