> * 188.66.63.1/24 is a range, not a single host in SPF
> * why it's not written as 188.66.63.0/24 which is more clear?
Which is more likely:
- someone erroneously added `/24` when they really meant to specify just
one host.
- someone wrote `1` instead of the more conventional `0` at the spot
that contains no relevant info for a `/24` network.
?
Stefan