How to send mail with out using gmail in asp.net

How to send mail with out using gmail in asp.net

<table style="width: 587px">
        <tr>
            <td class="style12">
       
           
                <div>
<div class="style9" style="height: 43px">Send Your Query Here</div>
<div>
<asp:Label ID="Name" runat="server" Text="Your Name*:" style="font-weight: 700"/><br/>
<asp:TextBox ID="txtName"  runat="server" Height="31px" Width="507px"

        />
<asp:RequiredFieldValidator ID="RV1" runat="server"
                            ControlToValidate="txtName"
                            ErrorMessage="Please Enter Your Name"
                            SetFocusOnError="True">*
</asp:RequiredFieldValidator><br />
</div>
<div>
<asp:Label ID="Email" class="eassy" runat="server" Text="Email*:" style="font-weight: 700"/><br/>
<asp:TextBox ID="txtMail" runat="server" Width="507px" Height="28px"/>
<asp:RequiredFieldValidator ID="RV2" runat="server"
                            ControlToValidate="txtMail"
                            ErrorMessage="Your Email Address"
                            SetFocusOnError="True">*
</asp:RequiredFieldValidator><br />
</div>
<div>
<asp:Label ID="Sub" runat="server" Text="Subject*:" style="font-weight: 700"/><br/>
<asp:TextBox ID="txtSubject" runat="server" Width="507px" Height="31px"/>
<asp:RequiredFieldValidator ID="RV3" runat="server"
                            ControlToValidate="txtSubject"
                            ErrorMessage="Reason to contact us"
                            SetFocusOnError="True">*
</asp:RequiredFieldValidator><br />
</div>
<div>
<asp:Label ID="Message" runat="server" Text="Feedback:" style="font-weight: 700"/><br/>
<asp:TextBox ID="txtMessage" runat="server" TextMode="MultiLine" Width="507px"
        Height="81px"/>
<asp:RequiredFieldValidator ID="RV4" runat="server"
                            ControlToValidate="txtMessage"
                            ErrorMessage="Please write your feedback"
                            SetFocusOnError="True">*
</asp:RequiredFieldValidator><br />
</div>
<div>
    <asp:Button ID="Button1" runat="server" Text="Send Info"
        onclick="Button1_Click" />
</div>
<asp:ValidationSummary ID="ValidationSummary1"
                       runat="server"/>
<asp:Label ID="Label1" runat="server" Font-Size="Large"/>
</div>
                <%--<table style="width: 580px">
                <tr><td>YourQuestion</td><td>
                    <asp:TextBox ID="TextBox2" runat="server" Width="245px"></asp:TextBox>
                    </td></tr>
                <tr><td>Comment</td><td>
                    <asp:TextBox ID="TextBox7" runat="server" Height="55px" TextMode="MultiLine"
                        Width="245px"></asp:TextBox>
                    </td></tr>
                <tr><td>Your Email Id</td><td>
                    <asp:TextBox ID="TextBox3" runat="server" Width="245px"></asp:TextBox>
                    </td></tr>
                    <tr>
                        <td>
                            &nbsp;</td>
                        <td>
                            <asp:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click"
                                ToolTip="Submit" />
                        </td>
                    </tr>
                </table>--%>
           
                </td>
        </tr>
        </table>

use name space  :-using System.Net.Mail;

 protected void Button1_Click(object sender, EventArgs e)
    {
        MailMessage feedBack = new MailMessage();
        feedBack.To.Add("emailId");
        feedBack.From = new MailAddress("emailId");
        feedBack.Subject = txtSubject.Text;
        feedBack.Body = "Sender Name: " + txtName.Text + "<br /><br />Sender Email: " + txtMail.Text + "<br /><br />" + txtMessage.Text;
        feedBack.IsBodyHtml = true;
        SmtpClient smtp = new SmtpClient();
        smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
        smtp.Port = 587;
        smtp.EnableSsl = true;
        smtp.Credentials = new System.Net.NetworkCredential("emailId", "password");
        //Or your Smtp Email ID and Password
        smtp.Send(feedBack);
        Label1.Text = "Thanks for contacting us";
    }