I need some help please. I am trying to write code to send emails from a .txt file. The problem I am having is sending an email when there is an invalid formatted emailaddress string. it appears from the documentation that .net has a built in validator and will throw an exception when an address is not in the correct format. I want to be able to either only add valid emailaddress's to my array or skip the invalid address when I start my for each loop. the way my code is now sending stops upon an invalid emailaddress and I am not sure how to write the code properly to continue the For Each and only count the successful emails sent,any help would be appreciated

Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        emailadd.Clear()
        GetEmailAdd() 'function to readtable from txt file
        Dim attach As Attachment = Nothing
        If CheckBox1.Checked Then
            Dim filename As String = OpenFileDialog2.FileName
            attach = New Attachment(filename)
        End If
        Dim i As Integer = 0
        Dim pauseTime As Integer = CDbl(txttimesecs.Text) * 1000
        Dim result As DialogResult = MessageBox.Show("There are" & " " & emailadd.Count & " " & "Messages to be Sent", "Send Email", MessageBoxButtons.OKCancel, MessageBoxIcon.Question)
        If result = DialogResult.Cancel Then
            Return
        End If
        For Each email In emailadd
            Try
                Dim sslValue As String = ComboBox1.Text
                Dim SmtpServer As New SmtpClient()
                Dim mail As New MailMessage()
                SmtpServer.Credentials = New Net.NetworkCredential(txtusername.Text, txtpassword.Text)
                SmtpServer.Port = CDbl(txtserverport.Text)
                SmtpServer.Host = txtservername.Text
                SmtpServer.EnableSsl = sslValue
                mail = New MailMessage()
                mail.From = New MailAddress(txtfrom.Text)
                mail.To.Add(email)
                mail.Subject = txtsubj.Text
                If CheckBox1.Checked Then
                    mail.Attachments.Add(attach)
                End If
                mail.Body = txtmsgbox.Text
                If btnhtml.Checked = True Then
                    mail.IsBodyHtml = True
                Else
                    mail.IsBodyHtml = False
                End If
                SmtpServer.Send(mail)
                i += 1
            Catch ex As Exception
                MsgBox(ex.ToString)
                MsgBox("No Messages Sent")
                Return
            End Try

            wait(pauseTime)
        Next
        MsgBox(i.ToString & " " & "Messages Sent")
    End Sub
Code:
 Public Function GetEmailAdd()
        If Table.Rows.Count <= 0 Then
            MsgBox("There is No Data")
        End If
        Dim columnName = txttocol.Text
        If Table.Columns.Contains(columnName) Then
        Else
            MsgBox("Column Name Not Found")
            Return Nothing
        End If
        For Each row As DataRow In Table.Rows
            If Not (row(columnName)) Is Nothing Then
                emailadd.Add(row(columnName).ToString)
            End If
        Next
        Return emailadd

    End Function