Duvida sobre servidor de email zimbra

1. Duvida sobre servidor de email zimbra

randolphrrl
(usa CentOS)

Enviado em 02/03/2016 - 18:14h

Boa noite pessoal,
meu servidor de email estava funcionando normalmente já faz mais de 4 meses, porem ontem ele começou a apresentar um erro estranho e depois disso não consigo mais enviar emails.

<email@dominio.com.br>: host aspmx.l.google.com[74.125.28.26] said: 550 5.7.1
    [IR] Our system has detected an excessively high number of invalid
    recipients originating from your account. Contact your service provider for
    support (in reply to end of DATA command)

Outro erro antes do erro acima:


method:	[unknown]
msg:	Invalid address: email@dominio.com.br. com.zimbra.cs.mailbox.MailSender$SafeSendFailedException: MESSAGE_NOT_DELIVERED; chained exception is: com.zimbra.cs.mailclient.smtp.InvalidRecipientException: RCPT failed: Invalid recipient email@dominio.com.br: 550 Please turn on SMTP Authentication in your mail client.
code:	mail.SEND_ABORTED_ADDRESS_FAILURE
detail:	soap:Sender
trace:	qtp509886383-143:https://xxx.xxx.xxx.xxx:443/service/soap/SendMsgRequest:1456950256941:a6b34cbbd347c382
request:	
Body: {
  SendMsgRequest: {
    _jsns: "urn:zimbraMail",
    m: {
      e: [
        // [0]:
        {
          a: "email@dominio.com.br",
          t: "t"
         },
        // [1]:
        {
          a: "email@dominio.com.br",
          p: "Suporte - Dominio",
          t: "f"
         }
       ],
      idnt: "02c18394-9d37-4117-9d18-759e4f5fb177",
      mp: [
        // [0]:
        {
          ct: "multipart/alternative",
          mp: [
            // [0]:
            {
              content: {
                _content: "teste! 
"
               },
              ct: "text/plain"
             },
            // [1]:
            {
              content: {
                _content: "<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>teste!</div></div></body></html>"
               },
              ct: "text/html"
             }
           ]
         }
       ],
      su: {
        _content: "teste"
       }
     },
    suid: 1456950279718
   }
 },
Header: {
  context: {
    _jsns: "urn:zimbra",
    account: {
      _content: "email@dominio.com.br",
      by: "name"
     },
    authToken: "(removed)",
    csrfToken: "0_849435aca004e1b2be6aa990026671fb8579a718",
    session: {
      _content: 14,
      id: 14
     },
    userAgent: {
      name: "ZimbraWebClient - GC48 (Win)",
      version: "8.6.0_GA_1182"
     }
   }
 }