This is the command fdnsspf1 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
fdnsspf1 - resolve an SPF version 1 record of a hostname
SYNOPSIS
fdnsspf1 <hostname>
DESCRIPTION
fdnsspf1 will attempt to look up an SPF version 1 record for hostname. If one is found,
it is printed to standard output and the program exits with return code 0. If more than
one is found (a violation of the specification), none is found, or the DNS query fails,
nothing is printed and the program exits with return code 1.
Use fdnsspf1 online using onworks.net services
