PostScriptum does not collect, store or transmit any personal data. All processing happens exclusively on your local device within your Thunderbird installation. The choices and configuration you make (such as account order or enabled options) are stored solely in Thunderbird’s local add-on storage. There are no connections to external servers, no tracking, no analytics and no sharing with third parties. The add-on accesses messages and folders only to the extent required for the filing action you trigger; no content is read out, stored or sent anywhere.