error when i try and send email

ok, i promise this will be the last time for awhile i turn to you guys for help.

I'm trying to connect to a external smtp server using the bytearray classes:

          var myMailer:SMTPMailer = new SMTPMailer ("outbound.mailhop.org", 2525);

                              myMailer.authenticate("password", "login")

                              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);

  // event dispatched when the client has authenticated successfully

                              myMailer.addEventListener(SMTPEvent.AUTHENTICATED, onAuthSuccess);

  // event dispatched when the client could not authenticate

                              myMailer.addEventListener(SMTPEvent.BAD_SEQUENCE, onAuthFailed);

                              myMailer.sendHTMLMail ( "maxkool22@yahoo.com", "jorgesanchezwd@optonline.net", "test smtp", "<br><b>Picture from HTML :)</b>");

It seems to connect just fine but when I try and sent the email this is the error i get:

554 SMTP synchronization error

I have never seen this error before and when i try and google it there really isnt much info on what causes the issue or how to fix it.

I've stumped you guys before but I'm hoping this one isnt one of those questions!!

Thanks

Jorge