The Itechtics Blog
Tools and guides for sysadmins and power users.
SPF PermError: Too Many DNS lookups, and How to Limit Under 10
Key Points SPF PermError “too many DNS lookups” means a receiving server needed more than 10 DNS lookups to check your SPF record, and stopped. For a server receiving emails, SPF is the standard way to check if the sending server is legitimate. Legitimate servers are listed by the domain in their SPF record. You…
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