grupos.com.brは安全ですか？

Este site permite a pratica de Spam! Não possui política de privacidade adequada, e permite a prática de abusos por seu membros! Segue abaixo cabeçalho de recusa de email enviado ao site reclamando do abuso: This is the mail system at host mail.grupos.com.br. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to <postmaster> If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <*****> (expanded from <anti-spam@grupos.com.br>): host *****[200.193.29.43] said: 554 5.7.1 <>: Sender address rejected: Access denied (in reply to RCPT TO command) Reporting-MTA: dns; mail.grupos.com.br X-Postfix-Queue-ID: D26F011E0B0 X-Postfix-Sender: rfc822; Arrival-Date: Tue, 4 Aug 2009 13:54:34 -0300 (BRT) Final-Recipient: rfc822; anti-spam@gruposinternet.com.br Original-Recipient: rfc822;anti-spam@grupos.com.br Action: failed Status: 5.7.1 Remote-MTA: dns; 200.193.29.43 Diagnostic-Code: smtp; 554 5.7.1 <>: Sender address rejected: Access denied