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Proton Bridge alternatives

The best Proton Bridge alternatives in Comms, ranked by Sparkpulse's velocity_score.

About Proton Bridge

Proton's IMAP gateway is in deep maintenance, hardening fixes only.

Proton Bridge — the local IMAP/SMTP gateway that lets standard mail clients talk to Proton's encrypted backend — has settled into a hardening-and-fix rhythm. Recent releases are dominated by certificate validation fixes, mailbox conflict resolution, label/unlabel endpoint regressions, and OS compatibility work (macOS 26). No directionally new capabilities have shipped in over a year.

Velocity 2.5 · Last update 7d ago

Read the full Proton Bridge trajectory →

Top 12 alternatives to Proton Bridge

Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.

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Frequently asked questions

What are the best alternatives to Proton Bridge?

The top Proton Bridge alternatives we currently track in Comms are Twilio, Zoho Mail, Superhuman, Threema, Intercom, ranked by recent ship velocity.

How is this list of Proton Bridge alternatives ranked?

Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.

Can I compare Proton Bridge directly with one of these alternatives?

Yes — every card has a "Compare with Proton Bridge" link to a side-by-side /compare page.