Al intentar mandar un correo a ciertos clientes, me aparece el siguiente mensaje de error:
5.3.0 - Other mail system problem 550-'5.7.1 The user or domain that you are sending to (or from) has a policy that\n5.7.1 prohibited the mail that you sent. Please contact your domain\n5.7.1 administrator for further details. For more information, go to\n5.7.1 https://support.google.com/a/answer/172179 j22-20020a37ef16000000b0077d6046fc74si8050788qkk.577 - gsmtp'
agradeceria mucho si alguien le ha podido dar solucion.
