[caiu] Servidor de e-mails da Anatel

[Tiago SR]

Estou tentando enviar um e-mail para a Anatel, setor de outorgas, mas estou recebendo isso como resposta, vindo de Mailer-Daemon em tugrik.anatel.gov.br:

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# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
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Your message could not be delivered for 0 days, 12 hours, 0 minutes.
It will be retried until it is 5 days, 0 hours, 0 minutes old.

For further assistance, please send mail to <postmaster em anatel.gov.br>.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.


<orle em anatel.gov.br>: 451 4.4.1 [internal] No valid hosts (too many connection failures)

Reporting-MTA: dns; tugrik.anatel.gov.br
Arrival-Date: Sun, 02 Jul 2017 21:57:42 -0300

Final-Recipient: rfc822; orle em anatel.gov.br
Status: 4.4.1
Action: delayed
Last-Attempt-Date: Mon, 03 Jul 2017 13:43:24 -0300
Diagnostic-Code: smtp; 451 4.4.1 [internal] No valid hosts (too many connection failures)