Pingen

Pingen is a digital mail service that lets businesses send physical letters by uploading PDFs through a browser-based WebApp or an API. Letters are printed locally near the recipient and delivered via local postal services or DHL, with address, print, and postal validation applied before sending. The service handles letter tracking with live status updates, shipping statistics, and digital processing of return mail for undeliverable letters.

Integrations include Email-to-letter, S3, OneDrive, Dropbox, Google Drive, SFTP Share, and Zapier, along with a scalable API for building custom connections. Additional capabilities include multi-user support, multi-workspace support, bulk mail handling, two-factor authentication, and automatic credit purchase.

Pingen is aimed at businesses of varying sizes and industries, including finance, insurance, e-commerce, real estate, marketing, healthcare, and legal. It uses a prepaid, pay-per-letter model with no setup fees, monthly subscriptions, minimum volumes, or fixed-term contracts; volume discounts apply at higher mailing volumes, and custom terms are available for large senders. A free WebApp is available, and all features and integrations are included at no additional charge.