Email tracker blocker for Superhuman
Superhuman has a built-in read-status control, but it is off by default and only governs Superhuman's own behaviour — it does nothing about the trackers other senders embed in the mail you receive. And no standalone tracker blocker covers Superhuman: Ugly Email, PixelBlock, Trocker and Gblock were all built for Gmail. That makes Mailshade the dedicated email tracker blocker for Superhuman. It runs on mail.superhuman.com and uses Chrome's declarativeNetRequest to cancel known tracker-pixel requests at the network layer before they load, so the open is never reported, and it unwraps click-tracking redirect links so a click does not phone home. Every blocked event is recorded in local IndexedDB and charted per sender. This page explains the gap in Superhuman's own setting and what dedicated, network-level blocking adds.
Why Superhuman needs a separate blocker
Superhuman's read-status toggle is off by default and scoped to its own surface. It does not block the marketing, sales and recruiting pixels arriving in your inbox, and no other standalone blocker supports Superhuman at all.
What Mailshade does in Superhuman
- Cancels known tracker requests via declarativeNetRequest on mail.superhuman.com.
- Shows a red-eye overlay naming the tracker domain.
- Unwraps click-tracking redirect links.
- Records blocked senders in a per-sender dashboard in IndexedDB.
The only dedicated option
Because the Gmail-first rivals skip Superhuman, enabling Mailshade is the practical way to stop sender-side trackers there. It treats Superhuman as a first-class client rather than an afterthought.
No speed cost
declarativeNetRequest rules are evaluated by the browser without scripting each request, and only known tracker domains are blocked, so Superhuman stays as fast as ever.
FAQ
Is there any other tracker blocker for Superhuman?
Not as a standalone option. Ugly Email, PixelBlock, Trocker and Gblock are Gmail-focused and do not cover Superhuman. Mailshade is the dedicated blocker for the Superhuman web client.
Doesn't Superhuman block tracking itself?
It has a read-status setting, but it is off by default and only affects its own surface. It does not block the tracking pixels other senders embed, which is what Mailshade cancels.
Does Mailshade run in the Superhuman desktop app?
Mailshade is a Chrome MV3 extension for the Superhuman web client at mail.superhuman.com. It does not run inside a desktop wrapper that lacks browser-extension support.
Will blocking trackers slow Superhuman down?
No. The browser evaluates declarativeNetRequest rules without running script per request, and only known tracker domains are blocked, so Superhuman's responsiveness is unchanged.
How much does the Superhuman tracker blocker cost?
Pricing is the same for every client: from $3.99 per month or $19 one-time for Founders Lifetime. The source is open under AGPL-3.0.