SendMail.Send( PageContext.BoardSettings.ForumEmail, ( string )row ["Email"], Subject.Text.Trim(), Body.Text.Trim() );

SendMail.Send("admin@itchytech.net", "rico@hotmail.com", "Sample", "Sample Only");

<!--
	SMTP setup for sending of e-mails from your forum.
-->
<smtp from="mail.itchytech.net" deliveryMethod="Network">
	<network host="mail.itchytech.net" password="mypassword" userName="admin@itchytech.net" />
</smtp>

Server Error in '/' Application.
The specified string is not in the form required for an e-mail address.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: The specified string is not in the form required for an e-mail address.

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:

[FormatException: The specified string is not in the form required for an e-mail address.]
   System.Net.Mime.MailBnfHelper.ReadMailAddress(String data, Int32& offset, String& displayName) +934335
   System.Net.Mail.MailAddress.ParseValue(String address) +245
   System.Net.Mail.MailAddress..ctor(String address, String displayName, Encoding displayNameEncoding) +87
   System.Net.Mail.MailMessage..ctor() +271
   YAF.Classes.Utils.SendMail.Send(MailAddress fromAddress, MailAddress toAddress, String subject, String bodyText, String bodyHtml) +548
   YAF.Classes.Utils.SendMail.Send(MailAddress fromAddress, MailAddress toAddress, String subject, String bodyText) +39
   YAF.Classes.Utils.SendMail.Send(String fromEmail, String toEmail, String subject, String body) +82
   YAF.Pages.Admin.mail.Send_Click(Object sender, EventArgs e) +354
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746


Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433 

<smtp from="mail.itchytech.net" deliveryMethod="Network">
    <network host="mail.itchytech.net" password="mypassword" userName="admin@itchytech.net" />
</smtp>

<smtp from="admin@itchytech.net" deliveryMethod="Network">
    <network host="mail.itchytech.net" password="mypassword" userName="admin@itchytech.net" />
</smtp>