Newton Mail Read Receipts: Is Newton Tracking Your Email?

Newton Mail read receipts are real, and in September 2026 they are live again. If someone emails you from the Newton app, the message is tracked unless they switched it off, and Newton's own read receipts page promises the sender it is "Invisible to recipients." Newton Mail tracking has worked that way since at least 2017. The old tracking server is gone, a rebuilt app replaced it, and Newton has not published how the new version detects an open. Here is what we verified and how to block email tracking from Newton in Gmail.

Key Takeaways

• Newton's live privacy policy says "Read Receipts is turned ON by default" and that Newton collects "your recipient's actions like email open, user-agent and IP address."
• Newton relaunched on June 29, 2026, after a July 31, 2024 shutdown, and added per recipient read receipts with "double-check marks" on April 29, 2026.
• The legacy Newton tracking host, tr.cloudmagic.com, returned NXDOMAIN in our DNS lookups on September 27, 2026, so pixels in old Newton emails no longer report anything.
• Gmail's image proxy hides your IP address from Newton but, by Google's own admission, still lets senders know "whether you've opened an email that has an image."

Is Newton Mail Still Around in 2026?

Yes. Newton is back on Mac, Windows, Linux, iPhone, iPad and Android, free or $5 a month for Pro, per its June 29, 2026 relaunch post. It has survived several funerals since CloudMagic became Newton in 2016:

• August 7, 2018: Newton announced a September 25, 2018 closure, its CEO telling 9to5Mac that "the premium mail application market is simply not there," despite more than 40,000 paying subscribers.
• 2019 to 2020: Andy Rubin's Essential bought CloudMagic, reopened Newton on February 5, 2019, then folded. MacRumors reported that "Newton Mail will be available through April 30, 2020."
• May 2020: New owners Maitrik Kataria and Justin Mitchell took over, per Android Police, and pledged to open source the app "should anything go wrong."
• July 2024: Newton's homepage carried an "Important Announcement: Newton email service is shutting down on July 31, 2024," as an Internet Archive capture from July 25, 2024 shows.
• June 29, 2026: The rebuilt Newton launched.

The relaunch post blames the earlier collapses on infrastructure: the old app "depended heavily on server-side systems for syncing, receipts, and connected services."

How Do Newton Mail Read Receipts Work?

Newton's read receipts historically worked by inserting a unique, invisible remote image into each outgoing email and logging when your mail client fetched it. Newton designer Umesh Gopinath spelled it out in a March 23, 2017 post, Read Receipts in Newton:

• The pixel: "When you hit Send, Newton inserts a tiny transparent image in the body of the email... We call it the Tracking Pixel."
• Your location: "We also get to know the IP address from where the request comes using which we guess the location."
• Group emails: "Newton splits the mail into multiple copies, one each per recipient with a unique Tracking Pixel, before sending," while the sender's Sent folder shows a single message.

The rebuilt app keeps the same promise. Its public changelog added read receipts on April 29, 2026 with "Per-recipient tracking" and a switch "per account," and on July 31, 2026 extended per recipient tracking to Outlook and "any other mailbox," noting that "your Sent folder keeps a single clean copy." That is the 2017 split copy trick, back again. The current read receipts page says tracking is "On by default," can be switched off "per email with one click," and is "auto-deleted after 180 days."

The page never says how an open is detected. It contrasts itself with "older 'pixel tracking' tools" but names no replacement. The standard read receipt, defined in IETF RFC 8098, asks the recipient first: "The purpose of obtaining user's consent is to protect user's privacy." Newton's FAQ describes the opposite, with "nothing the recipient has to approve."

What Does Newton Collect About You as a Recipient?

Newton says it collects when you open the email, your user agent and your IP address. The privacy policy linked from Newton's site today reads: "Read Receipts allows you to see the read/unread status of your sent e-mails without any notification to the recipient. We collect and track information about your sent email and your recipient's actions like email open, user-agent and IP address. Read Receipts is turned ON by default."

That policy is marked "Last Updated: April 27, 2020," names "Pixer Digital" as operator, and predates the rebuild by six years. It says "Newton's cloud downloads and pushes only recent emails — emails sent or received in the last 60 days" and that where OAuth is unavailable "we keep your account username and password in our secure servers." The 2026 relaunch post says the opposite about mailboxes: "Newton doesn't store your mailboxes on its servers. Mail syncs on your device." Its retention clause says "for as long as is necessary"; the marketing page says 180 days.

Both may be accurate for different eras, but the only legal text a recipient can read describes an architecture Newton says it abandoned. The read receipts page headlines this section "Tracking that respects everyone." You are part of "everyone," and nobody asked you.

Can You Tell If a Gmail Message Came With a Newton Read Receipt?

Not from the message itself: Newton's FAQ promises "no visual indicator, banner, or notification on their end." The source helps partly. In Gmail, choose Show original from the three dot menu and search for tracking hosts. Our guide to detecting email tracking pixels in Gmail walks through the process.

For older mail, the legacy host is documented. A malware sandbox scan dated August 5, 2020 captured a Newton pixel at tr.cloudmagic.com/h/v6/emailtag/tag/2.0/.../newton.gif, and tracked links used tr.cloudmagic.com/h/v6/link-track/1.0/...?redirect_uri=. On September 27, 2026 that hostname returned NXDOMAIN, as did a made up control subdomain, so those pixels are inert.

For the 2026 app, we could not identify the tracking host and will not guess one.

The Old Newton Redirect Became a Phishing Tool

Phishers also reused a Newton link tracking URL. A Triage sandbox analysis from May 25, 2023 scored one 10/10 malicious as a Microsoft credential phish. A urlquery report from October 20, 2023 shows the same tracking path, with a different redirect_uri, landing on a fake "Sign in to Outlook" page. One path serving two destinations suggests the target was never bound to the link, which makes it an open redirect: a reputable looking domain in front of a phishing page. Any tracker that wraps links carries this risk, which is why we recommend you strip click tracking in Gmail rather than click through.

Does Gmail's Image Proxy Stop Newton Read Receipts?

No, it hides your location but not the open. Google's Gmail image help page says "Senders can't use image loading to get information about your computer or location," then concedes "Sometimes, senders may know whether you've opened an email that has an image." Newton knew this in 2017: its own post warned that because Gmail proxies images, "the location we receive can be the location of Gmail servers and not the recipient's."

What This Means for Your Inbox

Newton's 2017 post named its audience as "entrepreneurs, CXOs and independent professionals," including investors, lawyers and journalists. Their emails carry deals and deadlines, where knowing you opened a message twice at 11pm is leverage.

The asymmetry is the telling part. Newton's March 30, 2026 changelog added a feature to "Detect and block tracking pixels so senders can't tell when you've opened a message." Newton users can shield themselves from trackers while tracking everyone they write to by default. Polymail sells the same pairing. Shipping a tracker blocker to your own customers concedes that being tracked is worth stopping.

Newton vs Superhuman vs Spark vs Mailtrack

Newton stands out for advertising default on tracking as a selling point. Our comparison of Gmail read receipt trackers covers more tools.

How Do You Block Newton Read Receipts in Gmail?

Stop the remote image and avoid tracked redirects. The full playbook is in how to block email tracking in Gmail, but the short version:

1. Turn off automatic images. Settings, See all settings, Images, "Ask before displaying external images," Save Changes, per Google. It also hides legitimate images.
2. Hover before clicking. A link whose real destination sits inside a parameter is a tracking redirect.
3. Use a maintained blocker. The honest options as of September 27, 2026:

• Ugly Email: open source. Its Firefox add on is at version 4.1.2, last updated March 6, 2024, and we found no working Chrome listing.
• PixelBlock: Gmail only, 40,000 Chrome users, last updated December 2, 2025. Pixels, not links.
• Trocker: open source, version 3.4.1 updated July 10, 2026, blocks pixels and flags tracked links in Gmail, Outlook.com and Yahoo.
• Apple Mail Privacy Protection: Apple says it hides your IP address and prevents senders from seeing whether you opened a message, but only inside Apple Mail, not Gmail on the web, and it creates fake opens by prefetching images.
• Gblock: stays inside Gmail, blocks known pixels from an automatically updated blocklist, and routes clicks through a proxy that strips tracking parameters. Its list carries a rule for Newton's legacy tr.cloudmagic.com host; we cannot confirm one for the unidentified 2026 host. Unmatched pixel sized images get reported so the list can be updated. One limit: the click proxy hides your IP and device, but a redirect server can still log that a click happened.

We compare the free three in depth in our Ugly Email, PixelBlock and Trocker alternatives guide, and the wider field in our roundup of email tracker Chrome extensions.

What We Could Not Verify

We did not exchange a tracked email with the 2026 Newton app, so we cannot confirm its pixel host, whether it still logs IP addresses, or whether read receipts are free. Its read receipts page does not describe its detection method. Current ownership is unclear: the policy names Pixer Digital, while the App Store lists CloudMagic, Inc.