SPF (was: Re: MX Record And Email)

Spack wrote:
Some use SPF (Sender Policy Framework, aka Sender ID) to check sending IPs
are authorised for the domain of the From address in the message (you should
be OK with these as you'll have the MX records pointing to your mail server,
but you'll also need to add SPF/Sender ID records to the authoritative DNS
for your domain, and most hosting companies' DNS interfaces don't have this
facility, if you can create TXT records you can add the SPF records
yourself).

Or just don't bother setting any SPF up.
.