SPFszint

SPFszint is a term that has emerged in discussions related to email authentication, specifically concerning the Sender Policy Framework (SPF). While not a formally recognized standard or official designation by the SPF working group, "SPFszint" appears to be a colloquial or informal way of referring to the perceived level of "completeness" or "robustness" of an SPF record. It suggests an assessment of how well an SPF record is configured to protect a domain from unauthorized email sending.

A high "SPFszint" might imply an SPF record that accurately lists all legitimate sending sources for a domain, uses appropriate modifiers like `~all` (softfail) or `-all` (hardfail) to handle unauthorized senders, and avoids common pitfalls that could lead to legitimate emails being rejected. Conversely, a low "SPFszint" could indicate a record that is missing critical sending IP addresses, uses overly permissive mechanisms, or contains syntax errors.

The concept of "SPFszint" is not a technical specification but rather a descriptor used by administrators and security professionals to gauge the effectiveness of their SPF implementation. It highlights the importance of not just having an SPF record, but ensuring it is meticulously maintained and accurately reflects the domain's email infrastructure. This informal grading system emphasizes the ongoing need for vigilance in managing DNS records for email security.