125,000 verified Poland 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 Poland segment.
At a glance: A research dataset describing the Poland Business Email List market: verified-contact volume, industry distribution, outreach benchmarks, and regulatory framework… See the full description on the dataset page:
https://huggingface.co/datasets/emailmarketingdataset/poland-business-dataset.
