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Sending an HTML Mail Message with the Script Task

The Integration Services SendMail task only supports mail messages in plain text format. However you can easily send HTML mail messages by using the Script task and the mail capabilities of the .NET Framework.

Note Note

If you want to create a task that you can more easily reuse across multiple packages, consider using the code in this Script task sample as the starting point for a custom task. For more information, see Developing a Custom Task.

The following example uses the System.Net.Mail namespace to configure and send an HTML mail message. The script obtains the To, From, Subject, and body of the e-mail from package variables, uses them to create a new MailMessage, and sets its IsBodyHtml property to True. Then it obtains the SMTP server name from another package variable, initializes an instance of System.Net.Mail.SmtpClient, and calls its Send method to send the HTML message. The sample encapsulates the message sending functionality in a subroutine that could be reused in other scripts.

To configure this Script Task example without an SMTP Connection Manager

  1. Create string variables named HtmlEmailTo, HtmlEmailFrom, and HtmlEmailSubject and assign appropriate values to them for a valid test message.

  2. Create a string variable named HtmlEmailBody and assign a string of HTML markup to it. For example:

    <html><body><h1>Testing</h1><p>This is a <b>test</b> message.</p></body></html>
    
  3. Create a string variable named HtmlEmailServer and assign the name of an available SMTP server that accepts anonymous outgoing messages.

  4. Assign all five of these variables to the ReadOnlyVariables property of a new Script task.

  5. Import the System.Net and System.Net.Mail namespaces into your code.

The sample code in this topic obtains the SMTP server name from a package variable. However, you could also take advantage of an SMTP connection manager to encapsulate the connection information, and extract the server name from the connection manager in your code. The AcquireConnection method of the SMTP connection manager returns a string in the following format:

SmtpServer=smtphost;UseWindowsAuthentication=False;EnableSsl=False;

You can use the String.Split method to separate this argument list into an array of individual strings at each semicolon (;) or equal sign (=), and then extract the second argument (subscript 1) from the array as the server name.

To configure this Script Task example with an SMTP Connection Manager

  1. Modify the Script task configured earlier by removing the HtmlEmailServer variable from the list of ReadOnlyVariables.

  2. Replace the line of code that obtains the server name:

        Dim smtpServer As String = _
          Dts.Variables("HtmlEmailServer").Value.ToString
    

    with the following lines:

        Dim smtpConnectionString As String = _
          DirectCast(Dts.Connections("SMTP Connection Manager").AcquireConnection(Dts.Transaction), String)
        Dim smtpServer As String = _
          smtpConnectionString.Split(New Char() {"="c, ";"c})(1)
    

public void Main()
        {

            string htmlMessageTo = Dts.Variables["HtmlEmailTo"].Value.ToString();
            string htmlMessageFrom = Dts.Variables["HtmlEmailFrom"].Value.ToString();
            string htmlMessageSubject = Dts.Variables["HtmlEmailSubject"].Value.ToString();
            string htmlMessageBody = Dts.Variables["HtmlEmailBody"].Value.ToString();
            string smtpServer = Dts.Variables["HtmlEmailServer"].Value.ToString();

            SendMailMessage(htmlMessageTo, htmlMessageFrom, htmlMessageSubject, htmlMessageBody, true, smtpServer);

            Dts.TaskResult = (int)ScriptResults.Success;

        }

        private void SendMailMessage(string SendTo, string From, string Subject, string Body, bool IsBodyHtml, string Server)
        {

            MailMessage htmlMessage;
            SmtpClient mySmtpClient;

            htmlMessage = new MailMessage(SendTo, From, Subject, Body);
            htmlMessage.IsBodyHtml = IsBodyHtml;

            mySmtpClient = new SmtpClient(Server);
            mySmtpClient.Credentials = CredentialCache.DefaultNetworkCredentials;
            mySmtpClient.Send(htmlMessage);

        }
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