Envia email usando o comando "sendmail"

// Apple Xcode


#include <stdio.h>
#include <stdlib.h>

// unix, linux
#define SENDMAIL "/usr/sbin/sendmail -t"


int main (int argc, const char * argv[])
{
    // send email using comand sendmail
    char *the_to = "To:bla@bla.bla\n";
    //char *the_from = "From:bla@bla.bla\n";

    FILE *the_email;

    if ((the_email = popen(SENDMAIL, "w")))
    {
        // to
        fputs(the_to, the_email);

        // from
        //fputs(the_from, the_email);

        // subject
        fputs("Subject: My Subject!\n\n", the_email);

        // message
        fputs("Hello World!\n", the_email);

        // close
        pclose(the_email);
    }
    else
    {
        puts("erro no envio de email");
    }

    return 0;
}