联系人表单未将数据发送到电子邮件

Question

我正在使用PHP联系人表格将联系人表格数据发送到我的电子邮件。我的代码是正确的，因为我没有收到任何错误，即使我收到一封发送成功消息的电子邮件，但我的电子邮件ID中也没有收到电子邮件。

这是我的HTML代码：

Public Shared Sub NewMethod(ByVal dgv As DataGridView)
    Dim ofd As OpenFileDialog = New OpenFileDialog With {
        .Filter = "Excel |*.xlsx",
        .Title = "Import Excel File",
        .InitialDirectory = "D:\\Test\\ExcelFiles"
    }
    ofd.ShowDialog()
    Try
        If ofd.FileName IsNot "" Then
            Dim xlApp As New Excel.Application
            If xlApp Is Nothing Then
                MessageBox.Show("Excel is not properly installed!")
            Else
                Dim xlBook As Excel.Workbook = xlApp.Workbooks.Open(ofd.FileName)
                Dim xlSheet As Excel.Worksheet = CType(xlBook.ActiveSheet, Excel.Worksheet)
                Dim totalExcelRows = xlSheet.UsedRange.Rows.Count
                For i = 0 To dgv.Rows.Count
                    If dgv.Rows(i).Cells(0).Value IsNot Nothing Then
                        For excelRow = 1 To totalExcelRows
                            If xlSheet.Range("A" & excelRow).Text.ToString() = dgv.Rows(i).Cells(0).Value.ToString() Then
                                dgv.Rows(i).Cells(2).Value = xlSheet.Range("B" & excelRow).Text
                                Exit For
                            End If
                        Next
                    Else
                        Exit For
                    End If
                Next
                xlApp.Quit()
                Marshal.ReleaseComObject(xlSheet)
                Marshal.ReleaseComObject(xlBook)
                Marshal.ReleaseComObject(xlApp)
            End If
        End If
    Catch ex As Exception
        MsgBox(ex.Message)
    End Try
End Sub

这是PHP代码：

<form name="contactform" method="post" action="send_form_email.php">
  <table width="450px">
  <tr>
      <td valign="top">
         <label for="first_name">First Name *</label>
      </td>
      <td valign="top">
         <input  type="text" name="first_name" maxlength="50" size="30">
      </td>
  </tr>
  <tr>
      <td valign="top"">
         <label for="last_name">Last Name *</label>
      </td>
      <td valign="top">
         <input  type="text" name="last_name" maxlength="50" size="30">
      </td>
  </tr>
  <tr>
      <td valign="top">
         <label for="email">Email Address *</label>
      </td>
      <td valign="top">
         <input  type="text" name="email" maxlength="80" size="30">
      </td>
 </tr>
 <tr>
     <td valign="top">
        <label for="telephone">Telephone Number</label>
     </td>
     <td valign="top">
        <input  type="text" name="telephone" maxlength="30" size="30">
     </td>
 </tr>
 <tr>
     <td valign="top">
        <label for="comments">Comments *</label>
     </td>
     <td valign="top">
        <textarea  name="comments" maxlength="1000" cols="25" rows="6"></textarea>
    </td>
 </tr>
 <tr>
     <td colspan="2" style="text-align:center">
        <input type="submit" value="Submit"> 
     </td>
 </tr>
</table>
</form>

请检查此代码，并让我知道我在哪里做错了。