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<mailSettings> Element (Network Settings)

.NET Framework 4

Configures mail sending options.

<configuration> Element
<system.net> Element (Network Settings)
<mailSettings> Element (Network Settings)

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<mailSettings
  <smtp> … </smtp>
/mailsettings>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

None.

Child Elements

Attribute	Description
<smtp>	Configures Simple Mail Transport Protocol options.

Parent Elements

Element	Description
<system.net>	Contains settings that specify how the .NET Framework connects to the network.

Example

The following code example specifies the appropriate SMTP parameters to send e-mail using the default network credentials.

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<configuration>
  <system.net>
    <mailSettings>
      <smtp deliveryMethod="network">
        <network
          host="localhost"
          port="25"
          defaultCredentials="true"
        />
      </smtp>
    </mailSettings>
  </system.net>
</configuration>

Reference

Network Settings Schema

SmtpClient

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FAQ

N is for ....

Network has a capital n ... did they even test the example. Silly question

History

5/31/2012
MrTortoise2

from address required for .NET Framework 4

I had an application that was working under .NET Framework 3.5 and only made one change, i.e. to .NET Framework 4.
This caused an exception which was resolved by specifying the from address.
This worked under .NET Framework 3.5: <smtp deliveryMethod="Network"> and it failed under .NET Framework 4.
This resolved the problem: <smtp deliveryMethod="Network" from="xxx@yyy.zzz">
(It is interesting that the "from" parameter is not specified as required.)

History

3/18/2011
Mark Bennion again

smtp deliveryMethod must be "Network" (capitalized)

At the time of writing this, the smtp deliveryMethod in the example above was "network" (lower case). It needs to be "Network" or else it will fail the enumeration constraint.

History

11/18/2010
Jim Ierley