smtp is noe sending email instantly,it makes a Queue in my local system

Ok here's my problem. I have a contact page with a txtbox for users name, email and message for users to contact me.  When I send the message it goes through, but the senders email is always my email. Even though i have set it to the txtEmail.Text property. So when I reply, it sends me an email. What am I not seeing that I messed up. Also this is running from VS 2005.

                 protected void btnSubmit_Click1(object sender, ImageClickEventArgs e)
                {

                 const string toAddress = "myemail@gmail.com";
 
                    MailAddress from = new MailAddress(txtEmail.Text, txtName.Text);
			        MailAddress to = new MailAddress(toAddress, "Admin");
			        MailMessage message = new MailMessage(from, to);

			        // set properties
			        message.Subject = txtName.Text + " has sent you an email!";
			        message.Body = txtMessage.Text;
                                message.IsBodyHtml = false;

			        //create smtp object
			        SmtpClient client = new SmtpClient();
                               client.EnableSsl = true;
  
                    try
                    {
                        client.Send(message);
                    }

                    catch(Exception ex)
 

 I am working on an email that someone will send from one of our main sites requesting an account password.  I am using System.Net.Mail.MailMessage to create the email and then sending it using System.Net.Mail.SmtpClient.  Below is my code: 

	Public Function sendEmail(ByVal address As String) As String
		Dim mailMessage As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage()
		
		mailMessage.To.Add(New System.Net.Mail.MailAddress("emailAddress"))
		mailMessage.From = (New System.Net.Mail.MailAddress(address))
		
		Dim smtpClient As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient()
		
		Try
			smtpClient.Send(mailMessage)
		Catch ex As Exception
			Throw New ApplicationException("Data Error", ex)
		End Try
	End Function

	Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
		sendEmail("emailAddress")
	End Sub

Then in my web.config file I have the following

		<mailSettings>
			<smtp>
				<network host="cook.CMAP.public" port="25" 
					defaultCredentials="true"/>
			</smtp>
		</mailSettings>

It all looks like it is right bu

'System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.   at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine)   at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)   at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)   at System.Net.Mail.SmtpReplyReader.ReadLine()   at System.Net.Mail.CheckCommand.Send(SmtpConnection conn, String& response)   at System.Net.Mail.MailCommand.Send(SmtpConnection conn, Byte[] command, String from)   at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception)   at System.Net.Mail.SmtpClient.Send(MailMessage message)   --- End of inner exception stack trace ---   at System.Net.Mail.SmtpClient.Send(MailMessage message) 

 i tried many things but still awaiting solution

sometimes  i get this error

 'System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: The remote name could not be resolved: 'smtp.mail.y

I am using .net membership functionality, The problem is on forget password page it send two emails to the user , any idea why?

I am using Windows 2008 Server.

Imports System.Net.Mail

Partial Class registration_ForgotPassword
    Inherits System.Web.UI.Page
    Protected Sub btnSendPassword_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSendPassword.Click
        SendForgotPasswordEmail()
    End Sub

#Region "SendForgotPasswordEmail"
    Private Sub SendForgotPasswordEmail()
        Dim emailFrom As String = ConfigurationManager.AppSettings("EmailFrom").ToString()

        Dim message As String = String.Empty
        Dim emailTo As String = txtEmail.Text

        Dim username As String
        Dim password As String
        password = ""

        Dim list As MembershipUserCollection
        list = Membership.FindUsersByEmail(emailTo)

        If list.Count > 0 Then
            username = Membership.GetUserNameByEmail(emailTo)
            password = list(username).ResetPassword()

            Dim msg As String = ""
            msg = "Your password is " + password

            msg = msg & "</br> As this is a temporary password please immediately change your password after login."
            message = msg
            Dim objmm As New MailMessag