In one of our earlier articles titled. „How many e-Delivery boxes can a company, citizen, office have? Guide with examples”We explained that every entity—including a law firm run by an attorney, a notary public, or a legal advisor—can formally have only one address" ADE in the Electronic Address Database. With certain exceptions—such as for individuals with multiple roles (natural person + business + position of public trust)—it is possible to have several addresses, but in practice, each of them is a separate ADE, assigned to a specific function or entity.
This means that a law firm serving many clients still gets all correspondence in one box, which creates a real organizational challenge - manual sorting can be tedious, unreliable and lead to important mail being overlooked.
With this challenge in mind, Asseco Data Systems has announced the launch of a new feature specifically for law firms in Q3 2025. While it will still be possible to have only one ADE address, there will be an opportunity Tagging shipments, assigning them to customers and cases and creating virtual internal structures of the box. In other words -. One ADE, but operating as multiple workboxes. Such a solution will be particularly useful for law firms with a large volume of correspondence, which need to maintain transparency and order.
That's why today we're focusing on practical system solutions, that allow law firms to practice the public trust profession efficiently and securely, without the need to set up multiple ADEs. In particular, we are looking at the tools offered by Asseco Data Systems (Certum) - from premium plans to advanced APIs in the Enterprise version. With these One ADE address can act as dedicated customer and case mailboxes, with automatic sorting, assignment and full supervision - mess-free and safe. Let's see how it works.
Public trust professions - lawyers, notaries - formally can only have a one ADE address for law firms, even though they serve many clients. As a result, all e-Deliveries (with clients, offices, etc.) come to the same mailbox, which makes manual sorting cumbersome and error-prone.
Key question: Can you reign in the chaos and make one ADE and act like many - assigned to different clients and cases?
With the “invitation and authorization” function, the law firm can:
Certum allows you to define contacts:
The Enterprise version gives you access to User Agent API (UA API), through which you can:
Size of the law firm | Recommended plan Certum | Key features |
Small | Premium (50 users) | shared logins, contact book, filters |
Average | Premium + authorizations | Dedicated users, notifications, highlighting correspondence |
Large / corporate law firm | Enterprise (UA/SE API) | Automatic retrieval and sorting, rules, full integration with DMS/BPM |
This approach allows for efficient handling of multiple customers without chaos in the ADE box.
With the features of the Certum, the ADE box:
➡️ Recommendation: small and medium-sized law firms can quietly operate on the Premium, while larger ones - reach for Enterprise with API, which gives full automation and order without stress.
...It will be our great pleasure to help you.
Contact us
We'll answer your questions, find a time that works for you, and match you with an advisor at one of our locations throughout Poland.
You can also write an email from us [email protected].
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.
