Namespace: System.Net.Mail
Specifies the priority of an email message.
<SerializableAttribute>
Public Enum MailPriority
This enumeration is used by the MailMessage class to indicate the importance of an email message.
| Member | Description |
|---|---|
| Normal | The default priority for an email message. |
| High | Indicates that the email message is of high importance. |
| Low | Indicates that the email message is of low importance. |
When you set the Priority property of a MailMessage object to one of the MailPriority enumeration values, the Simple Mail Transfer Protocol (SMTP) Extended Simple Mail Transfer Protocol (ESMTP) `X-Priority` header is set appropriately.
For example:
MailMessage mail = new MailMessage();
mail.Subject = "Important Update";
mail.Body = "Please review the attached document.";
mail.To.Add("recipient@example.com");
mail.From = new MailAddress("sender@example.com");
mail.Priority = MailPriority.High;
// Send the email using an SmtpClient (not shown here)