TLP Mail Marker

Apply FIRST TLP 2.0 markings to email you compose in Roundcube Webmail. Choose TLP:CLEAR, TLP:GREEN, TLP:AMBER, TLP:AMBER+STRICT or TLP:RED, and add consistent subject and body markings before sending. TLP Mail Marker helps you remember classification and notice changes in handling requirements. It can warn or block when a message has no classification, and warn when a reply or forward would lower the original classification. Settings let you choose approved levels, a default level, marking style and an organisation profile. Works with Roundcube Webmail. Add your own webmail hostname and approve access for that site. It starts with no access to websites; access is requested only for hosts you choose. This is not a Gmail or Outlook extension. Email processing stays on your device. No developer servers, analytics, tracking or remote code. Your settings are stored locally. TLP labels communicate sharing boundaries; they do not encrypt email, enforce recipient behaviour or replace your organisation’s security policy. Open-source under the MIT licence. Support and private vulnerability reporting are available through the project on GitHub.