Openum

Openum is a registered electronic delivery service that sends documents by email or SMS and records when recipients open them. Documents are delivered through a link rather than as an attachment, and access to the landing page is certified. The service produces documentary evidence containing electronic data generated during the process, such as IP addresses, email addresses and mobile phone numbers. It is marketed by Lleida.net as a Trusted Service Provider.

The management area handles current deliveries and configurable message patterns, with features including automatic reminders, notifications on opening or expiry, branding for emails and landing pages, .csv data export, templates, and status tracking. The interface and documentary evidence are available in five languages, and the service works across devices without additional software. An API covers the functionality of a certified delivery environment for both administrative and user sides, enabling integration with ERP or CRM systems.

Openum is intended for companies sending documents to recipients and is positioned for sectors including banking and fintech, energy and utilities, insurance, human resources, health care and real estate. Pricing is usage-based with no fees or minimum consumption, using a virtual credit system; documents sent to a single recipient are limited to 25 MB.