Important Information – Change of Electronic Sender (Elektroniczny Nadawca) System Addresses
Dear Sir or Madam,
We would like to inform you about changes to the access addresses of the Elektroniczny Nadawca system.
PRODUCTION Environment – Change Effective from August 31, 2026
Starting August 31, 2026, a new production WebAPI address will be in effect:
The system website remains unchanged
The web interface (GUI) will continue to be available at:
The new target address is already available. Please implement it in your systems and integrations before the specified deadlines.
Decommissioning of Existing Addresses
The current PRODUCTION addresses will remain available until September 30, 2026.
• https://e-nadawca.poczta-polska.pl/websrv/
• https://e-nadawca.poczta-polska.pl/websrv/en.php
• https://e-nadawca.poczta-polska.pl/websrv/labs.php