Antispam Gateway

The service ensures antispam and antivirus protection of end mail servers (domains). The entities need not deal with demanding administration and develop their own protection for the end mail servers, the burden on the end mail servers is reduced and the unsolicited mail and spams are not delivered to the users.

Basic features:

  • Antispam Gateway is implemented in front of the entity’s mail systems;
  • Reviewed messages are delivered to the entity’s end mail server;
  • Robust and modular architecture ensuring high efficiency and 24/7/365 availability;
  • Antispam filters run on high-capacity servers which manage to protect the domain with high data traffic volumes even in peak hours;
  • Protection against DDoS attacks;
  • Temporary backup mail server, relay function (ensures that the message delivery is withheld for up to 5 days in case the entity’s primary mail server has failed).
  • Independency on the type of end mail server, possibility to integrate commercial solutions;
  • Support of IPv6 protocol.

Key benefits

  • No need for demanding administration, no costs of own solution.
  • Reduced burden on mail servers.

Target audience

The service is available to all entities connected to the CESNET e-infrastructure which operate their own mail server.


The service is available free of any additional charge to the entities connected to the CESNET e-infrastructure.


The interested entity should send a request to the User care department. Subsequently, the service is launched by a CESNET staff member who assists the interested entity with configuration and testing the service. The user gains access to operation protocols and the interface for the administration of the restricted addresses, etc.

Related services

Last change: 24.5.2017