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[Wed Dec 21 12:12:28 2011] [error] [client 127.0.0.1] PHP Fatal error:  Uncaught exception 'Swift_TransportException' with message 'Expected response code 220 but got code "", with message ""' in /srv/api/vendor/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:422\nStack trace:\n#0 /srv/api/vendor/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(315): Swift_Transport_AbstractSmtpTransport->_assertResponseCode('', Array)\n#1 /srv/api/vendor/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(123): Swift_Transport_AbstractSmtpTransport->_readGreeting()\n#2 /srv/api/vendor/swiftmailer/lib/classes/Swift/Transport/SendmailTransport.php(57): Swift_Transport_AbstractSmtpTransport->start()\n#3 /srv/api/vendor/swiftmailer/lib/classes/Swift/MemorySpool.php(65): Swift_Transport_SendmailTransport->start()\n#4 /srv/api/vendor/symfony/src/Symfony/Bundle/SwiftmailerBundle/EventListener/EmailSenderListener.php(47): Swift_MemorySpool->flushQueue(Object(Swift_Transport_SendmailTransport))\n#5 [internal function]: Symfony\\Bundle\\SwiftmailerBundle\\EventListen in /srv/api/vendor/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php on line 422