DNS

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How To Fix – SPF Too many included lookups Failure

The Solution to the 10 DNS Query Limit with SPF records. How To Fix – SPF Too many included lookups Failure. The problem you may have is something like this. You use a tool like our two favourite tools here: 1. MXToolbox SPF Checker 2. DMARCLY SPF Tool And they return the error that you have: Too many included lookups (16) Or The SPF record exceeds the 10 DNS query limit, which results in deteriorated email deliverability. Use DMARCLY’s Safe SPF feature to fix this issue. This error is generated by your SPF record referring more than 10 times to look up a DNS record while resolving your SPF record. You can look around the web a bit more for why this limit is in place, but you need to know that if you SPF record fails with these types of messages when testing, that the entire SPF record is… Read More »How To Fix – SPF Too many included lookups Failure