Set Authentication Method in SwiftMailer 4.0.6

Swiftmailer seems to default to crammd5 for SMTP authentication which is great but we have an SMTP server that requires PLAIN authentication (over SSL) and I can't seem to find a way in 4.x to set which authentication method to use. Apparently it was possible in 3.x but I can't find a way to do it in 4.x. I see there is a plain auth class but I've looked through the code and can't find a way to set it. Any开发者_运维技巧 help would be greatly appreciated.

Cheers,

Dan

The answer was provided to me at: http://groups.google.com/group/swiftmailer/browse_thread/thread/422a409989c8acf1

$transport->setAuthMode('PLAIN');