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The 10 domains requirement is a standard for SPF files in general. It is technically 10 DNS lookups and you can list as many IP addresses as you need on top of
by mobjack 7y ago
The 10 domains requirement is a standard for SPF files in general.
It is technically 10 DNS lookups and you can list as many IP addresses as you need on top of it.
Is Apple's policy is any different than this?