Same here. I get these errors:
"
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
 
llamaturns3@gmail.com
   (ultimately generated from 
turns@llamaserver.net)
   SMTP error from remote mail server after RCPT TO:
:
   host gmail-smtp-in.l.google.com [74.125.65.27]:
   552-5.2.2 The email account that you tried to reach is over quota. Please direct
   552-5.2.2 the recipient to
   552 5.2.2 http://mail.google.com/support/bin/a...py?answer=6558 i7si6528672yhe.26
"
Notice the bold message. Looks like the mail get's there and I get a confirmation back but it could be just some grace until the quota would be enforced in truth.