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SmtpClient.Timeout Property

Gets or sets a value that specifies the amount of time after which a synchronous Send call times out.

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

'Declaration
Public Property Timeout As Integer

Property Value

Type: System.Int32
An Int32 that specifies the time-out value in milliseconds. The default value is 100,000 (100 seconds).

ExceptionCondition
ArgumentOutOfRangeException

The value specified for a set operation was less than zero.

InvalidOperationException

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

By default, calls to the Send method block until the operation completes. If you set the Timeout property to a positive value, and a Send operation cannot complete in the allotted time, the SmtpClient class throws an SmtpException exception.

To send a message and continue executing in the application thread, use the SendAsync method.

The following code example demonstrates getting and setting the time-out value.

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

Windows 8.1, Windows Server 2012 R2, 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.

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