[sidr] Undelivered Mail Returned to Sender

MAILER-DAEMON@ietfa.amsl.com Sun, 13 September 2020 23:49 UTC

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Subject: [sidr] Undelivered Mail Returned to Sender
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--- Begin Message ---
The ietf.org mailing-list server has received a list posting from 
ronaldfullserver3205@countermail.com to sidr@ietfa.amsl.com with the subject 
'Todo en circuitos impresos para tus maquinas'

As the sender address isn't subscribed to the list, and has not been
confirmed earlier, we have to request a confirmation of the address.
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with the same subject line as this message.

(Simply sending a 'reply' to this message should work from most email
interfaces, since that usually leaves the subject line in the right
form.  The reply's additional "Re:" is ok.)

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--- End Message ---