Datasets:

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blazalek

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open-smtp-error-dataset

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The Open SMTP Error Dataset is now available for email-delivery tooling, bounce classification, observability, support workflows, and SMTP parser testing.

It contains 92 English SMTP enhanced-status-code records with:

• clear explanations and diagnostic guidance;
• retry and suppression recommendations;
• responsible-party actions and related codes;
• JSONL, CSV, and Parquet formats;
• 92 exact-code bounce-recognition rules plus cautious text-signal fallbacks.

The dataset is designed to help systems interpret SMTP responses consistently without turning incomplete text into an automatic delivery decision.

Browse the dataset card and files here:
https://huggingface.co/datasets/blazalek/open-smtp-error-dataset

Feedback, bug reports, integration ideas, and requests for additional examples are welcome.

Find out more about the author at https://blazalek.com, feel free to reach out to me if you have any questions.

Cheers,
Wojtek