Need DNS records help for single server (and IP), and multi-domain mail server.

[John Levine]

This has nothing to do with BIND, but anyway.

In article <mailman.545.1503526771.702.bind-users at lists.isc.org> you write:
>I would personally try to use -all for new domains from the word go.

Only if you want your mail to mysteriously disappear.  There are a lot
of perfectly legitimate ways to send and route mail that SPF cannot
describe.  Unless your name is Paypal or you are otherwise a giant
phish target, -all is not want you want.

R's,
John