An SPF record typically includes the following components:
v=spf1: Specifies the version of SPF being used. include:: Specifies other domains that are allowed to send emails on behalf of your domain. ip4:: Specifies the IP addresses that are authorized to send emails. ~all or -all: Specifies how emails that do not match the SPF record should be treated. ~all means soft fail, and -all means hard fail.