[dns-operations] Facebook name servers

[Stephane Bortzmeyer]

On Tue, Aug 25, 2009 at 11:55:57PM +0100,
 George Barwood <george.barwood at blueyonder.co.uk> wrote 
 a message of 25 lines which said:

> Facebook name servers appear to return invalid answers when sent an EDNS option.

<nanog>Did you report it to Facebook?</nanog>

% dig +short SOA login.facebook.com 
glb01.sf2p.tfbnw.net.login.facebook.com. hostmaster.facebook.com. 2009041604 10800 3600 604800 86400

But:

Delivery has failed to these recipients or distribution lists:

hostmaster at facebook.com<mailto:hostmaster at facebook.com>
The recipient's e-mail address was not found in the recipient's e-mail system.
 Microsoft Exchange will not try to redeliver this message for you. Please check the
 e-mail address and try resending this message, or provide the following diagnostic
 text to your system administrator.

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