ead.ct.utfpr.edu.br. 30 IN TXT "v=spf1 mx ip4:177.71.132.168 ?all" ead.ct.utfpr.edu.br. 30 IN A 54.233.97.47 ead.ct.utfpr.edu.br. 30 IN A 177.71.160.119 Mail exchangers: ead.ct.utfpr.edu.br. 30 IN MX 10 mail.ct.utfpr.edu.br.