Top 10 email service providers to send emails using asp .net

 In most of our website projects there is a need to send emails to website administrators, users, newsletter subscribers etc. In asp .net we can send emails using System.Net.Mail class. However this class needs SMTP server settings to send emails. To provide necessary SMTP settings we can either use our own SMTP server or we can use SMTP server of third party Email service providers like Rediffmail, Gmail, Hotmail, Yahoo etc. In this article we will see how to send emails using asp .net and email service providers like Rediffmail, Gmail, Hotmail, Yahoo etc.  We will also see list of top 10 email providers we can use to send emails with asp .net.

Note: This method requires internet connection to send emails, you can also send emails without internet connection in asp .net using SmtpDeliveryMethod.SpecifiedPickupDirectory. For more information refer this tutorial.

Step1: Create .aspx markup:

01

<table>

02	<tbody><tr>

03	<td colspan="2">

04	<asp:label forecolor="Green" id="lblConfirmation" runat="server">

05	</asp:label></td>

06

</tr>

07

<tr>

08

<td>

09	<b>Email To</b>

10

</td>

11

<td>

12	<asp:textbox runat="server" id="txtEmailTo">

13	</asp:textbox></td>

14

</tr>

15

<tr>

16

<td>

17	<b>Subject</b>

18

</td>

19

<td>

20	<asp:textbox runat="server" id="txtEmailSubject">

21	</asp:textbox></td>

22

</tr>

23

<tr>

24

<td>

25	<b>Body</b>

26

</td>

27

<td>

28	<asp:textbox textmode="MultiLine" runat="server" id="txtEmailBody"height="100px" width="400px">

29	</asp:textbox></td>

30

</tr>

31

<tr>

32

<td>

33

34

</td>

35

<td>

36	<asp:button text="Send Email" id="btnSendEmail" runat="server"onclick="btnSendEmail_Click">

37	</asp:button></td>

38

</tr>

39	</tbody></table>

Step2: Add Namespace.

1	using System.Net.Mail;

2	using System.Net;

Step3: Code Behind.

01	//--- Button Click to send emails.

02	protected void btnSendEmail_Click(object sender, EventArgs e)

03

{

04	using (MailMessage mm = new MailMessage())

05

{

06	mm.From = new MailAddress("YourEmailAddress"); //--- Email address of the sender

07	mm.To.Add(txtEmailTo.Text); //---- Email address of the recipient.

08	mm.Subject = txtEmailSubject.Text; //---- Subject of email.

09	mm.Body = txtEmailBody.Text; //---- Content of email.

10	mm.IsBodyHtml = false; //---- To specify wether email body contains HTML tags or not.

11

12	SmtpClient smtp = new SmtpClient();

13	smtp.Host = "smtp.gmail.com"; //---- SMTP Host Details.

14	smtp.EnableSsl = true; //---- Specify whether host accepts SSL Connections or not.

15	NetworkCredential NetworkCred = new NetworkCredential("YourEmailAddress","YourPassword");

16	//---Your Email and password

17	smtp.UseDefaultCredentials = true;

18	smtp.Credentials = NetworkCred;

19	smtp.Port = 587; //---- SMTP Server port number. This varies from host to host.

20	smtp.Send(mm);

21

22	//==== Show confirmation message.

23	lblConfirmation.Text = "Congratulations, Your email successfully sent";

24

25	//---- Clear form fields.

26	txtEmailBody.Text = string.Empty;

27	txtEmailSubject.Text = string.Empty;

28	txtEmailTo.Text = string.Empty;

29

}

30

}

From above example you can see how easily we can use power of asp .net and email service providers to send emails. Here is a list of 10 email service providers you can use to send emails. 

Sno	Server Name	SMTP Address	Port	SSL
1	GMail	smtp.gmail.com	587	Yes
2	Hotmail	smtp.live.com	587	Yes
3	Yahoo	smtp.mail.yahoo.com	587	Yes
4	Rediffmail	smtp.rediffmail.com	587	Yes
5	Outlook	smtp.live.com	587	Yes
6	AOL	smtp.aol.com	587	Yes
7	AIM	smtp.aim.com	587	Yes
8	Zoho Mail	smtp.zoho.com	465	Yes
9	Mail.com	smtp.mail.com	587	Yes
10	Sify.com	smtp.sify.com	587	Yes

To use these email service providers you have to just do changes in :

1. smtp.Host
2. smpt.EnableSSL
3. NetworkCredentials
4. smtp.Port

Example: Suppose you want to send email using your rediff mail and asp .net you need to change these settings only:

1	SmtpClient smtp = new SmtpClient();

2	smtp.Host = "smtp.rediffmail.com"; //---- SMTP Host Details.

3	smtp.EnableSsl = true; //---- Specify whether host accepts SSL Connections or not.

4	NetworkCredential NetworkCred = new NetworkCredential("YourRediffMailId","YourRediffMailPassword");

5	//---Your Email and password

6	smtp.UseDefaultCredentials = true;

7	smtp.Credentials = NetworkCred;

8	smtp.Port = 587; //---- SMTP Server port number. This varies from host to host.

9	smtp.Send(mm);

Final Output: