"SPF PermError: too many DNS lookups" is a common error seen in many SPF (Sender Policy Framework) implementations. When an often overlooked SPF 10-DNS-lookup limit is exceeded, an SPF PermError, aka SPF permanent error, is returned. SPF PermError's can affect your email deliverability…
While Safe SPF overcomes the 10-DNS-lookup limit in SPF, sometimes it's desirable to flatten only a part of your SPF record, while leaving the rest as is. If this is the case, you can use partial Safe SPF.
One good reason for this is that some email delivery services like HelpScout, Office 365, At…
