This is a Mailman mailing list bounce action notice:

    List: curl-users
    Member: curl_at_allenbates.com
    Action: Subscription disabled.
    Reason: Excessive or fatal bounces.
    

The triggering bounce notice is attached below.

Questions? Contact the Mailman site administrator at
mailman_at_cool.haxx.se.

attached mail follows:

The original message was received at Fri, 6 Nov 2009 05:57:57 +0100
from localhost.localdomain [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<curl_at_allenbates.com>
    (reason: 550 Address '<curl_at_allenbates.com>' not known here.)

   ----- Transcript of session follows -----
... while talking to mail.allenbates.com.:
>>> RCPT To:<curl_at_allenbates.com>
<<< 550 Address '<curl_at_allenbates.com>' not known here.
550 5.1.1 <curl_at_allenbates.com>... User unknown
>>> DATA
<<< 503 No valid recipients specified.
... while talking to service61.mimecast.com.:
>>> RCPT To:<nicholas.parham_at_harveynash.com>
<<< 451 Internal resource temporarily unavailable
<nicholas.parham_at_harveynash.com>... Deferred: 451 Internal resource temporarily unavailable
451 4.4.1 reply: read error from service61.mimecast.com.
... while talking to service62.mimecast.com.:
>>> RCPT To:<nicholas.parham_at_harveynash.com>
<<< 451 Internal resource temporarily unavailable
<nicholas.parham_at_harveynash.com>... Deferred: 451 Internal resource temporarily unavailable
451 4.4.1 reply: read error from service62.mimecast.com.
... while talking to ip-68-178-144-61.ip.secureserver.net.:
>>> STARTTLS dialogue
<<< 454 TLS currently unavailable
... while talking to mx.rediffmail.rediff.akadns.net.:
<<< 451 delivery from 83.168.254.42 is deferred,repeatedly. Send again or check at http://www.commtouch.com/Site/Resources/Check_IP_Reputation.asp
<ga2002@rediffmail.com>,<ravitestmail@rediffmail.com>... Deferred: 451 delivery from 83.168.254.42 is deferred,repeatedly. Send again or check at http://www.commtouch.com/Site/Resources/Check_IP_Reputation.asp