Is it possible to send bulk mail through the e-Delivery box?

Can e-Delivery revolutionize mass electronic communication? Find out how this solution helps companies and institutions save time, money and protect the environment at the same time.
bulk mailing vs. e-Delivery
3-minute read Updated: August 18, 2026

Letters used to go for weeks, but today? Today, every second counts! Therefore, platforms for secure electronic communication are no longer a luxury, but a necessity.

One such platform is the e-Communication system, designed to facilitate contact between citizens, companies and public institutions. However, does this system allow for the implementation of mass mailings? If so, for whom might such a solution be particularly useful?

What is the e-Delivery system?

The e-Delivery system is service, which allows you to send documents electronically with guaranteed delivery and receipt. It is a tool that complies with Polish law, providing a safe and reliable form of communication that can replace traditional registered mail.

Is bulk shipping possible?

Yes, the e-Delivery system makes it possible to carry out mass registered mailings. This functionality is particularly useful for entities that need to communicate regularly with a large number of recipients. Sending thousands of messages at once is possible thanks to integration with relevant IT systems and the use of dedicated APIs (Application Programming Interfaces).

For whom will bulk shipping via e-Delivery be helpful?

  • Insurance companies:
    • Sending policy, contract change notifications or payment deadline reminders.
    • Communication with customers on complaints and claims.
  • Banks and financial institutions:
    • Transmission of bank statements, changes in regulations or information on promotions.
    • Informing customers about the repayment dates of loans or credits.
  • Public administration:
    • Distribution of administrative decisions, summonses or information on tenders.
    • Notifying citizens of changes in regulations or social programs.
  • Energy and telecommunications companies:
    • Sending bills, invoices and reminders for overdue payments.
    • Communication regarding service interruptions or planned upgrades.
  • Medical facilities and health insurance:
    • Reminders for appointments, test results, or notifications of changes in benefit schedules.

Advantages of mass mailing by e-Delivery

  • Security: Messages sent by e-Delivery are encrypted, which ensures the protection of personal data and confidential information.
  • Saving time: Automation of the shipping process allows a significant reduction in the time required to handle a large number of recipients.
  • Lower costs: Electronic delivery is cheaper than traditional mail.
  • Ecology: Giving up paper correspondence contributes to environmental protection.
  • Evidence: Proofs of dispatch, delivery and receipt are available.

Summary

Bulk mailing via e-Delivery box is a solution that can significantly facilitate communication for many institutions and companies. It is particularly useful in industries such as insurance, finance, energy and public administration. It offers a number of benefits, including security, saving time and money, and environmental impact. This is why more and more entities are choosing to implement this system in their daily operations.

Want to learn more about e-Delivery? Do you have questions about e-Delivery? 

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Free e-delivery boxes - podpisano.pl
from 247,00 PLN
Free e-Delivery box for receiving and sending electronic registered letters to offices, companies and individuals offers 4 GB capacity for the user and sending to public administration free of charge. In addition, the box allows importing shipments to disk and offers email notifications, providing full control over the messages received.

In order to use the e-Delivery box, it is necessary to confirm your identity. If you already have verification issued by the Certum.pl (e.g. SimplySign or CertumMini), you don't have to go through the process again.

Digital trust services - Services operating on the basis of eIDAS require verification and confirmation of identity, which guarantees full security and legal compliance of your correspondence.

E-delivery boxes Standard-podpisano.pl
Use the Standard e-communication box to gain more capacity and flexibility in managing electronic communications. The Standard mailbox offers 8 GB of capacity per user, support for three users and the possibility of shipping 100 shipments to companies and individuals by subscription. The process of setting up the box is quick and easy, allowing you to start using the service immediately.
Premium e-delivery boxes - podpisano.pl
from 399,00 PLN
Choose Certum's premium e-communication box to gain greater capacity, flexibility and security for your electronic communications. We offer 16 GB of capacity, support for ten users and 300 shipments to businesses and individuals per subscription.
Enterprise e-delivery boxes - podpisano.pl
Choose the Certum Enterprise e-delivery box, which offers flexibility and possibility to customize the offer according to the individual needs of your company. Integration with any electronic document management system via API Certum allows for efficient and secure management of electronic correspondence. It is an ideal solution for the largest companies that need a comprehensive and automated e-correspondence service.
E-delivery packages - podpisano
Certum's e-Delivery packages allow you to send registered e-letters to companies and individuals, providing proof of sending, receipt and reading. Available from £9 net for 5 shipments, with the option to purchase additional packages.
Can e-Delivery revolutionize mass electronic communication? Find out how this solution helps companies and institutions save time, money and protect the environment at the same time.

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