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Free and open source email client and personal information manager
Thunderbird is actively maintained and has recent security fixes — Mozilla lists multiple advisories including fixes in Thunderbird 140.4 and versions around 141–143 (security advisories) . Independen...
Proton Mail Bridge lets Thunderbird send and receive ProtonMail messages while preserving Proton’s end‑to‑end and zero‑access encryption by performing encryption/decryption locally on your computer an...
Robert Edward Grant is presented across multiple profiles as a contemporary polymath: a businessman who began in healthcare and medical technology, has held senior executive roles including President ...
Thunderbird is a free, open-source desktop email client with native OpenPGP and S/MIME support and recent partnerships to streamline encrypted services; it is used by roughly 20 million people and aim...
Thunderbird is actively maintained in 2025: the project moved its Desktop release channel to a monthly “Release” channel in March 2025 with Thunderbird 136 as the new default, and team blog posts and ...
ProtonMail’s end-to-end encryption for desktop access is built around a proprietary protocol that requires the Proton Bridge proxy for third‑party clients, and reporting indicates there are no fully s...
Proton’s web and mobile clients perform end-to-end (zero‑access) encryption for message bodies between Proton accounts; Bridge claims to provide the same end‑to‑end encryption while integrating with l...
For users in search of the best open‑source email clients that prioritize privacy in 2023, a handful stand out for different needs: Thunderbird for desktop power and extensibility, FairEmail for Andro...
Mozilla Thunderbird combines traditional transport security with user-facing encryption options and an aggressive patch cadence, delivering a feature set that includes . Independent reporting and vend...
Proton Mail integration into Mozilla Thunderbird depends primarily on installing , which provides IMAP/SMTP access but is available only to paid Proton customers according to the provided analyses. Th...
Using ProtonMail webmail means trusting Proton on each visit to deliver client-side encryption in your browser; using Thunderbird with Proton Bridge moves encryption and key handling to your local mac...
Thunderbird can send end-to-end encrypted email using standard protocols such as OpenPGP, which allows users to encrypt messages to non‑ProtonMail recipients provided those recipients publish or share...
Yes — when you run ProtonMail Bridge on your computer, Thunderbird can receive and display decrypted ProtonMail messages because the Bridge decrypts mail locally and presents it to the client over a l...
emerges in the reporting as the best balance of polished mobile experience and seamless cross‑device syncing, offering built‑in PGP, secure and unified inbox features that reviewers and the vendor hig...
Thunderbird is a local, client-managed email application that stores all user data in a , giving users direct control over retention and migration by copying or exporting that profile . Gmail follows ...
Mail Bridge is designed to let desktop email clients work with Proton Mail while preserving Proton’s (E2EE) and zero-access guarantees: the Bridge decrypts and encrypts mail locally on the user’s devi...
Mail Bridge reduces server-side exposure by providing end-to-end encryption between Proton’s servers and a local desktop client, and Proton states it “never permanently store[s] your PGP keys or decry...
Mozilla’s Thunderbird client (and Mozilla’s new Thundermail service) offers a different privacy model from Gmail in 2025: Thunderbird emphasizes local storage, optional client-side encryption and open...
Thunderbird is an open-source desktop client that offers built-in OpenPGP and S/MIME support (requiring key exchange) and gives users local control over private keys, making true end-to-end encryption...
Thunderbird’s open-source model gives it continuous, public code review and a community-backed security posture, plus built‑in support for standardized end‑to‑end encryption (OpenPGP and S/MIME) and t...