I just realized that, while I have an SPF record for
gladstonefamily.net, there is nothing to stop somebody from sending mail
from foo.gladstonefamily.net as the sending domain. This particular
domain does not exist. Alternatively, somebody could use a name that
does exist in my domain.
What should I do? Does every single entry in the domain need an SPF
record, including a wildcard? This could be a configuration nightmare.
What am I missing?
Philip
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