Now let's take a step-by-step look at the process of sending emails from the asp.net page.
1. Import the namespace
On the asp.net page, import the System. Web. Util namespace, which contains all the objects required for sending emails. These objects are:
| Object | Introduction |
| Smtpmail | Declare the mail system to send the mail. |
| Mailmessage | Declares a message, including the sending Address, receiving address, and other attributes. |
| Mailformat | Declare the Message format-HTML, text, and so on. |
| Mailattachment | Declare the attachment of the email. |
| Mailencoding Enum | Declared encryption method: base64 or uuencode. |
| Mailpriority Enum | Set mail priority: Value: High, bottom, General |
<% @ Import Namespace = "System. Web. Util" %>
II. Initialize MailMessage object
Use the following statement to initialize the MailMessage object.
Dim mailObj AS new MailMessage
The MailMessage object has the following attributes.
| Attribute | Description |
| From | Sender's email address |
| To | Recipient's email address |
| Subject | Email Subject |
| Body | Email content |
| CC | List of recipients copied on the email |
| BCC | List of recipients blind-copied on the email |
| Priority | Email priority High, bottom, average |
| Bodyencoding | Encrypted email content Base64 or uuencode |
| Bodyformat | Content format HTML or text |
| Attachments | Attachment List |
The following lines of code demonstrate how to use attributes of the MailMessage object. He described the Message to be created, and the message is sent using the SmtpMail object. In our example, mailObj is an instance of the MailMeessage object.
MailObj. From = "abc@mydomain.com"
MailObj. To = Request. Form ("")
MailObj. Subject = "subject of the mail"
MailObj. Body = "Message of the mail"
3. Send email
Finally, send the mail through the 'send' method of the SmtpMail object. The following code is used to send emails.
SmtpMail. Send (mailObj)
Finally, we will apply the above applications to a complete example.
The following is written in Asp.net + C.
<% @ Page language = "C #" %>
<% @ Import Namespace = "System. Web. Util" %>
<HTML> <BODY>
<Script language = "C #" RUNAT = "server">
// This method is called on the server when the submit
// Button is clicked on the client and when the page
// Posts back to itself
Public void SendMail (Object Obj, EventArgs E)
{
MailMessage mailObj = new MailMessage ();
// Set the email address 'from' and 'to'
MailObj. From = Request. Form ("From ");
MailObj. To = Request. Form ("");
MailObj. Subject = "Subject Of the Mail ";
MailObj. Body = "Body of the Mail ";
// Optional: html-format Email
MailObj. BodyFormat = MailFormat. Html;
// Optional: encrypt the email.
MailObj. BodyEncoding = MailFormat. Base64;
// Optional: set the priority of the email to high.
MailObj. Priority = MailPriority. High;
// Optional: attachment
// Note that a MailAttachment object is created to append a file to the email.
MailObj. Attachments. Add (new MailAttachment ("c: \ test.doc "));
// Use the smtpmail object to send the mail.
Smtpmail. Send (mailobj );
}
</SCRIPT>
<Asp: Label id = "headingmsg" text = "Enter your email address:" runat = "server"/>
<Form method = "Post" runat = "server">
Email Recipient: <input type = "text" name = "to"> <br>
Email sender: <input type = "text" name = "from">
<Input type = "Submit" name = "Submit" value = "send mail" runat = "server" onserverclick = "Sendmail">
</Form>
</Body>
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