Gets or sets the Simple Mail Transport Protocol (SMTP) delivery method. The default delivery method is Network.
Assembly: System (in System.dll)
Valid values for this property are Network, PickupDirectoryFromIis, and SpecifiedPickupDirectory. These values have configurable sub-items and have a corresponding section in the System.Net configuration file. All the sections are camel-cased, to allow the users to match the delivery method with their corresponding section names.
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.