Home Library Learn Samples Downloads Support Community Forums
This topic has not yet been rated - Rate this topic

SmtpClient.Port Property

.NET Framework 4.5

Gets or sets the port used for SMTP transactions.

Namespace:  System.Net.Mail
Assembly:  System (in System.dll)
C#
C++
F#
VB
Copy 
'Declaration
Public Property Port As Integer

Property Value

Type: System.Int32
An Int32 that contains the port number on the SMTP host. The default value is 25.
ExceptionCondition
ArgumentOutOfRangeException

The value specified for a set operation is less than or equal to zero.

InvalidOperationException

You cannot change the value of this property when an email is being sent.

The value of the Port property can also be set using constructors or the application or machine configuration file. For more information about using configuration files, see <mailSettings> Element (Network Settings). If information is specified using this property, this information overrides the configuration file settings.

The following code example demonstrates sending an e-mail message by using the host and port specified in an application configuration file.

C#
C++
VB
Copy
No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Did you find this helpful?
(1500 characters remaining)
© 2013 Microsoft. All rights reserved.