SMTP Mailer

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                       xmlns:s="library://ns.adobe.com/flex/spark"
                       xmlns:mx="library://ns.adobe.com/flex/mx" creationComplete="SMTPconnect()" width="271" height="246">
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>

    <fx:Script>
        <![CDATA[
            import org.smtp.events.SMTPEvent;
            import org.smtp.mailer.SMTPMailer;

            private var myMailer:SMTPMailer;
            [Bindable]
            private var btnVisibility:Boolean = false;
            private function SMTPconnect():void
            {
                myMailer = new SMTPMailer("smtp.example.com",587);
                myMailer.connect("smtp.example.com",587);
                myMailer.authenticate("postmaster@example.com", "myPassword");

                myMailer.addEventListener(SMTPEvent.AUTHENTICATED, onAuthSuccess);
                // event dispatched when the client could not authenticate
                myMailer.addEventListener(SMTPEvent.BAD_SEQUENCE, onAuthFailed);
                // pass a username and password
                // event dispatched when mail is successfully sent
                myMailer.addEventListener(SMTPEvent.MAIL_SENT, onMailSent);
                // event dispatched when mail could not be sent
                myMailer.addEventListener(SMTPEvent.MAIL_ERROR, onMailError);
                // event dispatched when SMTPMailer successfully connected to the SMTP server
                myMailer.addEventListener(SMTPEvent.CONNECTED, onConnected);
                // event dispatched when SMTP server disconnected the client for different reasons
                myMailer.addEventListener(SMTPEvent.DISCONNECTED, onDisconnected);
            }

            private function btnOnClick ():void
            {
                // send HTML email - this email is going through without any problems
                if(myMailer.connected)
                    myMailer.sendHTMLMail("myname@from.com", "myfriendsname@to.com", "Plain HTML Mail", "message text");

                // send HTML email with txt file attached - this email fails with the message - 554 Suspicious Message
                /*
                if(myMailer.connected)
                {
                    var myCapStream:ByteArray = new ByteArray();
                    var file:File = File.desktopDirectory.resolvePath("demoattachment.txt");
                    var fStream:FileStream = new FileStream();
                    fStream.open(file, FileMode.READ);
                    fStream.readBytes(myCapStream, 0, fStream.bytesAvailable);
                    fStream.close();

                    trace("myCapStream  :"+myCapStream.length);

                    myMailer.sendAttachedMail("myname@from.com", "myfriendsname@to.com", "Plain HTML Mail", "message text", myCapStream, "demoattachment.txt");
                }
                */
            }

            private function onAuthFailed ( pEvt:SMTPEvent ):void
            {
                trace("Authentication Error");
            }

            private function onAuthSuccess ( pEvt:SMTPEvent ):void
            {
                trace("Authentication OK");
            }

            private function onConnected ( pEvt:SMTPEvent ):void
            {
                trace("Connected: "+pEvt.result.message+"  -- Code: "+pEvt.result.code);
                btnVisibility = true;
            }

            private function onMailSent ( pEvt:SMTPEvent ) : void
            {
                trace("Mail sent: "+pEvt.result.message+"  --  Code: "+pEvt.result.code);
            }

            private function onMailError ( pEvt:SMTPEvent ):void
            {
                trace("Error: "+pEvt.result.message+"  -- Code: "+pEvt.result.code);
            }

            private function onDisconnected ( pEvt:SMTPEvent ):void
            {
                trace("User disconnected :"+pEvt.result.message+"  -- Code : "+pEvt.result.code);
            }

            private function socketErrorHandler ( pEvt:IOErrorEvent ) :void
            {
                trace("Connection error !");
            }


        ]]>
    </fx:Script>
    <s:Button x="101" y="106" enabled="{btnVisibility}" label="Send Mail" click="btnOnClick()"/>
</s:WindowedApplication>