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Originally Posted by baro2 Buenas, necesito configurar mi servidor zimbra para hacer que por el puerto 25 tenga relay cerrado, y por el puerto 587 tenga el relay autenticado para los usuarios autenticados. |
Zimbra is not an open relay, by default, if you block port 25 you will not be able to receive email. Port 587 is the correct Submission port for users to submit mail and will require them to authenticate.