System.Net.Mail Namespace

Contains classes used to send electronic mail to a Simple Mail Transfer Protocol (SMTP) server for delivery.

Classes

AlternateView	Represents the format to view an email message.
AlternateViewCollection	Represents a collection of AlternateView objects.
Attachment	Represents an attachment to an email.
AttachmentBase	Base class that represents an email attachment. Classes Attachment, AlternateView, and LinkedResource derive from this class.
AttachmentCollection	Stores attachments to be sent as part of an email message.
LinkedResource	Represents an embedded external resource in an email attachment, such as an image in an HTML attachment.
LinkedResourceCollection	Stores linked resources to be sent as part of an email message.
MailAddress	Represents the address of an electronic mail sender or recipient.
MailAddressCollection	Store email addresses that are associated with an email message.
MailMessage	Represents an email message that can be sent using the SmtpClient class.
SmtpClient	Allows applications to send email by using the Simple Mail Transfer Protocol (SMTP). The SmtpClient type is obsolete on some platforms and not recommended on others; for more information, see the Remarks section.
SmtpException	Represents the exception that is thrown when the SmtpClient is not able to complete a Send or SendAsync operation.
SmtpFailedRecipientException	Represents the exception that is thrown when the SmtpClient is not able to complete a Send or SendAsync operation to a particular recipient.
SmtpFailedRecipientsException	The exception that is thrown when email is sent using an SmtpClient and cannot be delivered to all recipients.
SmtpPermission	Controls access to Simple Mail Transport Protocol (SMTP) servers.
SmtpPermissionAttribute	Controls access to Simple Mail Transport Protocol (SMTP) servers.

Enums

DeliveryNotificationOptions	Describes the delivery notification options for email.
MailPriority	Specifies the priority of a MailMessage.
SmtpAccess	Specifies the level of access allowed to a Simple Mail Transport Protocol (SMTP) server.
SmtpDeliveryFormat	The delivery format to use for sending outgoing email using the Simple Mail Transport Protocol (SMTP).
SmtpDeliveryMethod	Specifies how email messages are delivered.
SmtpStatusCode	Specifies the outcome of sending email by using the SmtpClient class.

Delegates

SendCompletedEventHandler

Represents the method that will handle the SendCompleted event.

Remarks

The MailMessage class represents the content of a mail message. You can create mail attachments using the Attachment class.

See also

• System.Net
• System.Net.Mime
• System.Net.Security
• System.Net.Sockets
• Network Programming in the .NET Framework
• Best Practices for System.Net Classes
• Internet Protocol Version 6
• Network Programming Samples
• Network Tracing in the .NET Framework
• Security in Network Programming