Resources & Insights

Email tracking blog: cold email + deliverability + RevOps insights

Guides on email tracking, cold outreach, deliverability, follow-up timing, and AI-powered selling across Outlook and Gmail.

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Sales Strategy

Why Sales Teams Lose Deals in Their Own Inbox

Five ways warm B2B deals go quiet in the inbox, and the fixes. None of them needs a longer cadence, new messaging or more people.

Nate Summers
8 min
Gmail & OutlookAug 18, 20266 min

Email tracking in Gmail: what really works

Gmail has no built-in read receipts for normal accounts. How tracking works in Gmail, the image-proxy trap that fools most trackers, and how to see real opens.

Nate Summers
ComparisonsAug 16, 20264 min

Saleshandy retired its email tracker. What now?

Saleshandy's email tracking pages for Gmail and Outlook now return 404. What Saleshandy is today, what it costs, and what to use instead for tracking.

Nate Summers
Email TrackingAug 16, 20264 min

Outsolvi reviews on G2 and Trustpilot

What is on G2 and Trustpilot for Outsolvi right now, who wrote it, and links to read every review yourself instead of trusting a number.

Nate Summers
Gmail & OutlookAug 16, 20266 min

Email tracking in Outlook: what really works

Outlook read receipts are not tracking, and many trackers are Gmail-only. What email tracking in Outlook can really do, and how to see real opens.

Nate Summers
Email TrackingAug 16, 20263 min

What is Outsolvi? A plain answer

Searched Outsolvi and got Outsolve? Not the same thing. What Outsolvi is, what it costs, who it is for, and how to check whether it is any good.

Nate Summers
Email TrackingAug 2, 20265 min

What is a real email open? Why most trackers can't tell

Your tracker says the email was opened. Maybe it was. Or maybe a security scanner loaded it, or Apple pre-fetched it before your prospect ever looked.

Nate Summers
Outsolvi

See who actually read your email.

Outsolvi tracks what you send from Outlook and Gmail, tells you which opens came from a person and which came from a machine, and stops your follow-ups when someone replies.

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Email TrackingAug 2, 20265 min

Why your email open rate is wrong, and by how much

That 70 percent open rate on your dashboard probably counts a lot of machines. Where the inflation comes from, and how to see through it.

Nate Summers
Email TrackingAug 2, 20265 min

How to tell if a real person opened your email

A five-step check you can run on any open event to figure out whether a human read your email or a machine loaded it.

Nate Summers
Email TrackingAug 2, 20265 min

Bot opens vs human opens: the difference in plain English

No jargon, no diagrams. What a bot open is, what a human open is, how each one behaves, and why your tracker probably lumps them together.

Nate Summers
Email TrackingAug 2, 20265 min

Why Apple Mail says everyone opened your email

Apple Mail Privacy Protection loads your tracking pixel on Apple's servers before the recipient does anything.

Nate Summers
Gmail & OutlookAug 2, 20265 min

What is a Gmail proxy open, and should it count?

Gmail doesn't load your tracking pixel from the recipient's device. It loads it through Google's image proxy. So is a proxy open a real open?

Nate Summers
Email TrackingAug 2, 20266 min

Email tracking false positives, explained simply

A false positive is an open or click your dashboard reports that no human made. Apple servers, security scanners and image proxies create them constantly.

Nate Summers
AI InsightsAug 2, 20266 min

How AI can tell a human opened your email

Machines and people both trigger tracking pixels, but they don't behave the same way. Timing, origin, and client signals give humans away.

Nate Summers
Email TrackingAug 2, 20265 min

Why your tracker says 47 opens when 3 people read it

One email, one prospect, 47 reported opens. The culprits are Apple's privacy pre-fetch, corporate scanners and Gmail's image proxy.

Nate Summers
Email TrackingAug 2, 20265 min

What spam filters do to your open rate

Spam filters distort open rate both ways: security scanners add fake opens, while junk-foldering erases real ones.

Nate Summers
Email TrackingAug 2, 20265 min

When to trust an open notification (and when not to)

Some open notifications mean your prospect is reading right now. Others mean a security scanner touched your email two seconds after you sent it.

Nate Summers
Email TrackingAug 2, 20265 min

How confident should you be in an email open? A simple guide

Not all opens deserve the same trust. Some are a prospect reading your proposal, others are Apple's servers or a malware scanner.

Nate Summers
Email TrackingJun 2, 20259 min

Email Tracking Metrics That Actually Drive Revenue in 2026

Open rate is the loudest metric and the least reliable. The six metrics that earn a slot on an AE dashboard in 2026, and the three worth retiring.

Nish R
ProductivityAug 14, 20258 min

The Science of Follow-Up Timing: What the Research Shows

The lead-response research is real and the effect is big. What it says, where it stops, and how to act on it when you follow up on email.

Nate Summers
Sales StrategyOct 3, 20259 min

B2B Email Subject Lines That Convert, by Reply Rate

Measured by reply rate, not open rate: 4-7 words, company-name personalisation, sentence case, statements not questions. Shorter than the newsletters claim.

Nish R
Gmail & OutlookMay 22, 20258 min

How to Set Up Email Tracking in Outlook and Gmail

Which add-in each version of Outlook needs, how to set up Gmail, how to check tracking works, and the setup problems people actually run into.

Nate Summers
AI InsightsJul 10, 20259 min

AI Email Insights for Sales Teams: What Works in 2026

Three AI features move the needle in sales email: open confidence scoring, reply sentiment, send-time optimisation. Three are noise. What to ask vendors.

Nish R
ProductivitySep 19, 202510 min

Email Tracking and CRM: Webhook Patterns That Work

Reps manually log maybe 17 percent of real engagement. The webhook activity-logging pattern that closes the gap, for Salesforce, HubSpot, Pipedrive, Notion.

Nate Summers
Gmail & OutlookNov 8, 202510 min

Email Tracking for Outlook vs Gmail: The Real Differences

Why your tracking pixel sees Outlook and Gmail differently: Microsoft Defender pre-fetches, Gmail proxy duplicates, Apple MPP, Office.js vs extension.

Nish R
Email TrackingDec 5, 202511 min

Email Tracking, Privacy and Security: A Leader's Guide

What tracking pixels do, metadata versus body, encryption, GDPR, CCPA and SOC 2, and what belongs in a security review packet.

Nate Summers
Email TrackingJan 17, 202612 min

How to Choose an Email Tracking Tool in 2026

Seven questions that matter when picking an email tracker, in order: Outlook and Gmail support, confidence-scored opens, AI cost, SOC 2, per-seat math.

Nish R
Email TrackingMay 19, 20269 min

Your Email Open Rate Is Lying to You. Here's the Math.

Apple Mail Privacy Protection and email scanners fill open rates with machine opens. How far off the number can be, worked through, and what to track instead.

Nate Summers
Email TrackingMay 26, 20265 min

Why your email open count is lying to you

Your dashboard says 47 opens on that proposal. How many were the prospect? Most tools count every time you re-read your own sent email. Here is the fix.

Nate Summers
Email TrackingMay 29, 202611 min

B2B Email Tracking in 2026: Half Your Open Data Is Noise

Apple Mail Privacy Protection and corporate scanners now make a big share of recorded opens. What changed, what it costs sales teams, and what to measure.

Nate Summers
Email TrackingMay 31, 202614 min

Email Tracking Confidence Scoring: The 5-Tier Framework

How modern email tracking tells a real human read from an Apple MPP pre-fetch, a Defender scan or a Gmail proxy refetch.

Nate Summers
Email TrackingMay 31, 20269 min

Gmail Image Proxy: What a Proxy Open Really Means

GoogleImageProxy and googleusercontent.com in your tracker mean Gmail loaded your images through Google. When that is a real open, and when it isn't.

Nate Summers
Sales StrategyJun 21, 20267 min

Follow-up sequences that don't get ignored

Most reps stop after one follow-up. Most deals close after three to five touches. The gap, and a 30-second pattern for closing it without sounding like a robot.

Nate Summers

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