Hi, i'am configurated my site to send mail to a partner when a client request budget, the first mail has been sended, i am using PHP Mailer, but now returned this message:

2020-05-26 10:36:03 SERVER -> CLIENT: 220-server.arcabouco.com ESMTP Exim 4.93 #2 Tue, 26 May 2020 07:36:03 -0300 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
2020-05-26 10:36:03 CLIENT -> SERVER: EHLO sistema.centraldosresultados.com
2020-05-26 10:36:03 SERVER -> CLIENT: 250-server.arcabouco.com Hello sistema.centraldosresultados.com [207.180.220.47]250-SIZE 52428800250-8BITMIME250-PIPELINING250-AUTH PLAIN LOGIN250-STARTTLS250 HELP
2020-05-26 10:36:03 CLIENT -> SERVER: STARTTLS
2020-05-26 10:36:03 SERVER -> CLIENT: 220 TLS go ahead
Erro de SMTP: Não foi possível conectar ao servidor SMTP.
2020-05-26 10:36:03 CLIENT -> SERVER: QUIT
2020-05-26 10:36:03
2020-05-26 10:36:03
Erro de SMTP: Não foi possível conectar ao servidor SMTP.