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SmtpClient Constructor (String, Int32)

Initializes a new instance of the SmtpClient class that sends e-mail by using the specified SMTP server and port.

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

new : 
        host:string * 
        port:int -> SmtpClient

Parameters

host
Type: System.String

A String that contains the name or IP address of the host used for SMTP transactions.

port
Type: System.Int32

An Int32 greater than zero that contains the port to be used on host.

ExceptionCondition
ArgumentOutOfRangeException

port cannot be less than zero.

The host and port parameters set the value of the Host and Port properties, respectively. If host is a null reference (Nothing in Visual Basic) or equal to String.Empty, Host is initialized using the settings in the application or machine configuration files. If port is zero, Port is initialized using the settings in the application or machine configuration files. The Credentials property is initialized using the settings in the application or machine configuration files.

For more information about using the application and machine configuration files, see <mailSettings> Element (Network Settings). If information is specified using SmtpClient constructors or properties, this information overrides the configuration file settings.

The following code example demonstrates calling this constructor.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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