Hey awesome programmers! Glad to see you all This is my site...It is a Titan Classifieds Site. http://www.newdelhifreeads.com. I use cpanel.Accelerated 2 version. Could anyone please help me out with this? It would be a great help! Thanks.......... I am perfectly able to send/receive emails from my website email address. Whenever anyone tries to register on my site or try to post a free ad, the following error message results: Swift_TransportException Failed to authenticate on SMTP server with username ""using2 possible authenticators /home/newdelhi/public_html/protected/modules/Core/extensions/vendors/mail/vendors/swiftMailer/classes/Swift/Transport/Esmtp/AuthHandler.php(179)167foreach($this->_getAuthenticatorsForAgent()as $authenticator)168{169if(in_array(strtolower($authenticator->getAuthKeyword()),170 array_map('strtolower', $this->_esmtpParams)))171{172 $count++;173if($authenticator->authenticate($agent, $this->_username, $this->_password))174{175return;176}177}178}179thrownewSwift_TransportException(180'Failed to authenticate on SMTP server with username "'.181 $this->_username .'" using '. $count .' possible authenticators'182);183}184}185186/** 187 * Not used. 188 */189publicfunction getMailParams()190{191return array();StackTrace#0 etc etc etc