Real-Time Heuristic Parsing & Content Diagnostics
Guarantee your campaigns reach the primary inbox and strictly bypass aggressive machine-learning filters by executing a definitive, real-time audit of your raw email payload. Completely bypassing flawed simulated engines, our high-performance C# backend executes live, algorithmic heuristic parsing—enforcing strict Apache SpamAssassin penalty weights—directly against your EML source code. Guaranteeing absolute technical accuracy with strictly real-time operations and zero simulated data, we instantly detect toxic spam-trigger words, rigorously enforce optimal image-to-text ratios, and aggressively validate the presence of mandatory List-Unsubscribe headers, providing explicit, actionable diagnostics to flawlessly optimize your subject lines and secure your global deliverability.
Even with perfect DNS authentication, spammy content will ruin your deliverability. Paste your raw email to run it through our heuristic engine. We'll predict your inbox placement across major providers and flag content triggering SpamAssassin penalties.
Authentication (DMARC/SPF) gets you to the front door, but your content dictates which room you end up in. Test your copy before sending it to a 100,000-person list.
List-Unsubscribe header. We scan your raw EML to ensure compliance with 2024 sending guidelines.Your feedback has been submitted successfully. We appreciate your help in improving our tools.