Error code:   ConfigNamesError
Exception:    AttributeError
Message:      'str' object has no attribute 'items'
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/dataset/config_names.py", line 67, in compute_config_names_response
                  config_names = get_dataset_config_names(
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 161, in get_dataset_config_names
                  dataset_module = dataset_module_factory(
                                   ^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1207, in dataset_module_factory
                  raise e1 from None
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1182, in dataset_module_factory
                  ).get_module()
                    ^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 690, in get_module
                  config_name: DatasetInfo.from_dict(dataset_info_dict)
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/info.py", line 284, in from_dict
                  return cls(**{k: v for k, v in dataset_info_dict.items() if k in field_names})
                                                 ^^^^^^^^^^^^^^^^^^^^^^^
              AttributeError: 'str' object has no attribute 'items'

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AOL User Email list Database - Targeted Mailing Database — Market Intelligence Dataset

58,000,000 verified Worldwide contacts are available from LeadsBlue →. This open dataset provides the aggregate market intelligence behind that database — contact volume, benchmark open/reply rates, send timing, and compliance for the Worldwide segment.

At a glance: A research dataset describing the AOL User Email list Database - Targeted Mailing Database market: verified-contact volume, industry distribution, outreach benchmarks, and regulatory framework, published by LeadsBlue Research under CC BY 4.0.

Key figures

Metric	Value
Verified contacts in segment	58,000,000
Geography	Worldwide
Industry verticals benchmarked	14
License	CC BY 4.0

📥 Get the full AOL User Email list Database - Targeted Mailing Database — individual verified business records, ready to use: Download from LeadsBlue →

Market overview

This dataset describes the Worldwide business-email segment, comprising 58,000,000 verified business contacts in LeadsBlue's database. It provides segment-level scale, cross-industry outreach benchmarks, and channel timing for teams planning business outreach to Worldwide. Benchmark rates below are drawn from LeadsBlue's cross-market cold-email performance study.

Files in this dataset

File	Contents
`data/market_overview.csv`	Segment-level metrics: contact volume, benchmark rates, send timing
`data/industry_benchmarks.csv`	Open/reply benchmarks across 14 industry verticals
`data/compliance.csv`	Regulatory framework, business culture, decision-maker profile, hubs

Methodology

All numbers are segment-level aggregates from LeadsBlue's data operations and public baselines. The dataset is intentionally aggregate-only and contains no personally identifiable information.

How to cite

LeadsBlue Research. (2026). AOL User Email list Database - Targeted Mailing Database — Market Intelligence Dataset. Derived from the B2B Cold Email Benchmark Report 2026 (https://doi.org/10.5281/zenodo.20136256). CC BY 4.0. Source: https://leadsblue.com

@dataset{leadsblue_aol_user_email_list_dataset_targeted_mailing_dataset_2026,
  author    = {Johnson, Luther},
  title     = {AOL User Email list Database - Targeted Mailing Database -- Market Intelligence Dataset},
  year      = {2026},
  publisher = {LeadsBlue Research},
  doi       = {10.5281/zenodo.20136256},
  url       = {https://leadsblue.com/leads/aol-user-email-database/}
}

Source & full dataset

This aggregate dataset is published by LeadsBlue Research. The full verified targeted email list — with individual business contact records — is available at AOL User Email list Database - Targeted Mailing Database.

Related resources: Benchmark report (Zenodo) · Research hub · Interactive tools

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