I want to use the mail() function but doesn't work so I have some questions: 1. Is necessary that sendmail must be installed in the server to use this function? 2. Is necessary that sendmail must be running to use this function? 3. Is necessary that sendmail must be proper configure to use this function? Este correo ha sido enviado desde el Politécnico de Informática "Carlos Marx" de Matanzas. "La gran batalla se librará en el campo de las ideas"