This documentation is archived and is not being maintained.

SmtpClient.Send Method (String, String, String, String)

Sends the specified e-mail message to an SMTP server for delivery. The message sender, recipients, subject, and message body are specified using String objects.

Namespace: System.Net.Mail
Assembly: System (in system.dll)

public void Send (
	string from,
	string recipients,
	string subject,
	string body
)
public void Send (
	String from, 
	String recipients, 
	String subject, 
	String body
)
public function Send (
	from : String, 
	recipients : String, 
	subject : String, 
	body : String
)
Not applicable.

Parameters

from

A String that contains the address information of the message sender.

recipients

A String that contains the addresses that the message is sent to.

subject

A String that contains the subject line for the message.

body

A String that contains the message body.

Exception typeCondition

ArgumentNullException

from is a null reference (Nothing in Visual Basic).

-or-

recipient is a null reference (Nothing in Visual Basic).

ArgumentException

from is Empty.

-or-

recipient is Empty.

InvalidOperationException

This SmtpClient has a SendAsync call in progress.

-or-

Host is a null reference (Nothing in Visual Basic).

-or-

Host is equal to the empty string ("").

-or- Port is zero.

ObjectDisposedException

This object has been disposed.

SmtpException

The connection to the SMTP server failed.

-or-

Authentication failed.

-or-

The operation timed out.

SmtpFailedRecipientsException

The message could not be delivered to one or more of the recipients in recipients.

This method blocks while the e-mail is transmitted. You can specify a time-out value using the Timeout property to ensure that the method returns after a specified amount of time elapses.

Before calling this method, the Host and Port properties must be set either through the configuration files by setting the relevant properties, or by passing this information into the SmtpClient(String,Int32) constructor.

You cannot call this method if there is a message being sent asynchronously.

If the SMTP host requires credentials, you must set them before calling this method. To specify credentials, use the UseDefaultCredentials or Credentials properties.

If you receive an SmtpException exception, check the StatusCode property to find the reason the operation failed. The SmtpException can also contain an inner exception that indicates the reason the operation failed.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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