STARTTLS on Cisco IronPort email appliances

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Cisco IronPort email appliances advertise STARTTLS like this: 

250 STARTTLS

When sending a message, skpsmtpmessage only looks for it like this: 

250-STARTTLS

This causes it to never start the TLS session.  On systems that require TLS 
before AUTH, this causes sending email to fail with the error that there is no 
supported authentication method.  If TLS is not started, the server never 
presents any AUTH options.  

Original issue reported on code.google.com by brianm%[email protected] on 21 Mar 2011 at 8:42