Open-Xchange and Dovecot releases Dovecot Anti-Abuse Shield v1.2.0

Open-Xchange is pleased to announce the release of Dovecot Anti-Abuse Shield v1.2.0.

Dovecot Anti-Abuse Shield is included with Dovecot Pro and works with both Dovecot Pro and OX App Suite as a component to protect against login/authentication abuse.

Anti-Abuse Shield runs on a cluster of servers, and integrates with OX App Suite and Dovecot to detect abuse, brute force attacks and also to enforce common authentication/authorization policies across the platform.

Please note: Dovecot Anti-Abuse Shield is only available for customers who have a valid Dovecot Pro license and Dovecot Pro v2.2.25.1. onwards.

New Features include:
  • Persistent Replicated Blacklists
    Anti-Abuse Shield is able to store permanent or time-expiring entries for IP addresses and logins which are blacklisted. Blacklist entries are optionally persisted in a Redis DB, and can be replicated to all cluster members. Blacklist entries can be viewed and manipulated through Lua scripts or via the HTTP REST API.
  • Webhooks
    Webhooks can be configured to send events to configured webhook endpoints, such as analytics solutions, through HTTP(S). The following events can be sent via a webhook: Report, Allow, Add Blacklist Entry, Delete Blacklist Entry and Expire Blacklist Entry.

A more detailed overview of the main functions and features of Dovecot Anti-Abuse Shield can be found at:

A Whitepaper can be found at:

Shipped Packages and Version:
  • Dovecot Anti-Abuse Shield v1.2.0-rev2

You will find further information in the Release Notes:

For details of how to install and configure Dovecot Anti-Abuse Shield please refer to the instructions found at: