Site index
Every page on Outsolvi
402 pages across 16 content surfaces. The full site, one page deep, in case you came here looking for something specific.
Articles
33 pages
- Email tracking in Gmail: what really works
- Saleshandy retired its email tracker. What now?
- Outsolvi reviews on G2 and Trustpilot
- Email tracking in Outlook: what really works
- What is Outsolvi? A plain answer
- What is a real email open? Why most trackers can't tell
- Why your email open rate is wrong, and by how much
- How to tell if a real person opened your email
- Bot opens vs human opens: the difference in plain English
- Why Apple Mail says everyone opened your email
- What is a Gmail proxy open, and should it count?
- Email tracking false positives, explained simply
- How AI can tell a human opened your email
- Why your tracker says 47 opens when 3 people read it
- What spam filters do to your open rate
- When to trust an open notification (and when not to)
- How confident should you be in an email open? A simple guide
- Why Sales Teams Lose 23% of Deals in Their Own Inbox
- Email Tracking Metrics That Actually Drive Revenue in 2026
- The Science of Follow-Up Timing: The 4-Hour Window in 2026
- B2B Email Subject Lines That Convert, by Reply Rate
- How to Set Up Email Tracking in Outlook and Gmail
- AI Email Insights for Sales Teams: What Works in 2026
- Email Tracking and CRM: Webhook Patterns That Work
- Email Tracking for Outlook vs Gmail: The Real Differences
- Email Tracking, Privacy and Security: A Leader's Guide
- How to Choose an Email Tracking Tool in 2026
- Your Email Open Rate Is Lying to You. Here's the Math.
- Why your email open count is lying to you
- B2B Email Tracking in 2026: Half Your Open Data Is Noise
- Email Tracking Confidence Scoring: The 5-Tier Framework
- Gmail Image Proxy: How Google Inflates Your Open Rate
- Follow-up sequences that don't get ignored
Free tools
100 pages
- Outsolvi ROI Calculator
- Apple MPP Impact Estimator
- Open Rate Accuracy Checker
- Cost-Per-Meeting Calculator
- Reply Rate Target Calculator
- Sales Cycle Length Calculator
- SPF Record Generator
- DMARC Policy Generator
- UTM Link Builder
- Email Signature Generator
- Unsubscribe Link Template
- HTML to Plain Text Email Converter
- SPF Record Validator
- DMARC Record Validator
- Email Address Syntax Validator
- Email Subject Line Analyzer
- B2B Reply Rate Benchmarks
- B2B Open Rate Benchmarks
- Best Send Time Lookup
- CSV Email List Deduplicator
- Email Bounce Rate Calculator
- Monthly Email Volume Planner
- Annual vs Monthly Billing Savings
- Email Click-Through Rate Calculator
- B2B Email List Decay Projection
- Sender Warm-Up Schedule
- DKIM Record Checker
- Out-of-Office Message Generator
- Calendar Booking Link Builder
- Mailto Link Builder
- Plain-Text Email Divider Generator
- Email Headers Parser
- URL Encoder / Decoder
- B2B Bounce Rate Benchmarks by Industry
- Email Client Market Share 2026
- Email Spam Trigger Words Reference
- Email Preview Text Analyzer
- Email Readability Checker
- JSON ↔ CSV Email List Converter
- Email Text Case Converter
- Email Blast Cost Calculator
- Meeting Booking Rate Calculator
- Deliverability Score Estimator
- Sender Reputation Tier Calculator
- Daily Send Cap Calculator
- BIMI Record Generator
- MTA-STS Policy Generator
- TLS Reporting Record Generator
- Opt-In Confirmation Email Generator
- One-Click Unsubscribe Header Builder
- Email Preheader Tester
- Subject Line Emoji Render Checker
- Header From vs Envelope From
- MX Record Lookup & Explainer
- PTR Record Checker
- ARC Seal Explainer
- List-Unsubscribe Header Generator
- Email HTML Stripper
- Markdown to Email-Safe HTML
- Soft vs Hard Bounce Classifier
- Gmail Postmaster Tools Setup Checklist
- Microsoft SNDS + JMRP Setup Checklist
- DMARC Aggregate Report Parser
- Email Address Regex Builder
- Alias vs Plus-Address Explainer
- Outreach Cooldown Calculator
- Send Time by Recipient Timezone
- Prospect List Size Calculator
- Catch-All Domain Detector
- Disposable Email Detector
- Role Account Detector
- Email Address Normalizer
- Gmail Search Operator Cheatsheet
- Outlook Search Operator Cheatsheet
- IMAP vs POP vs Exchange
- Email Thread-ID Explainer
- RFC 5322 Message-ID Generator
- Received Header Chain Parser
- MIME Boundary Generator
- Email Size Calculator
- Yahoo Complaint Feedback Loop Setup
- Apple Mail Rendering Differences
- Gmail vs Outlook Rendering Quirks
- Cold Outreach Email Template Generator
- Follow-Up Email Template Generator
- Meeting Request Email Template Generator
- Renewal Nudge Email Template Generator
- Breakup Email Template Generator
- Voicemail Script Generator (Email-Companion)
- LinkedIn Connection Note Generator
- Email Snippet Personalizer
- IP Blacklist (RBL/DNSBL) Checker Explainer
- Spamhaus ZEN Explainer
- Google Feedback Loop (FBL) Explainer
- Complaint Rate Target Calculator
- Engagement Decay Half-Life Calculator
- SSL vs TLS for SMTP Explainer
- STARTTLS vs Implicit TLS Explainer
- Email Channel Attribution Explainer
- Weekly Deliverability Health Checklist
Compare
19 pages
- Outsolvi vs Saleshandy
- Outsolvi vs Yesware
- Outsolvi vs Mixmax
- Outsolvi vs Streak
- Outsolvi vs GMass
- Outsolvi vs Mailtrack
- Outsolvi vs Boomerang
- Outsolvi vs Right Inbox
- Outsolvi vs Mailbutler
- Outsolvi vs HubSpot Sales Hub
- Outsolvi vs Snov.io
- Outsolvi vs Cirrus Insight
- Outsolvi vs Vocus.io
- Outsolvi vs EmailAnalytics
- Outsolvi vs HeyReach
- Outsolvi vs La Growth Machine
- Outsolvi vs Expandi
- Outsolvi vs Dripify
- Outsolvi vs Waalaxy
Alternatives
14 pages
- Best Yesware Alternatives in 2026
- Best Mailtrack Alternatives in 2026
- Best Mixmax Alternatives in 2026
- Best Streak Alternatives in 2026
- Best Saleshandy Alternatives in 2026
- Best HubSpot Sales Hub Alternatives in 2026
- Best Boomerang Alternatives in 2026
- Best Right Inbox Alternatives in 2026
- Best GMass Alternatives in 2026
- Best Snov.io Alternatives in 2026
- Best Mailbutler Alternatives in 2026
- Best Cirrus Insight Alternatives in 2026
- Best Vocus.io Alternatives in 2026
- Best EmailAnalytics Alternatives in 2026
Best of
29 pages
- Best email warmup tools in 2026
- Best Email Tracking Software in 2026
- Best Email Tracking for Outlook in 2026
- Best Email Tracking for Gmail in 2026
- Best Free Email Tracking in 2026
- Best Email Tracking for Small Business in 2026
- Best Cheap Email Tracking Under $10/mo in 2026
- Best Saleshandy Alternative for Outlook (2026)
- Best Email Tracker That Doesn't Store Message Body
- Best Outlook Email Tracker with AI Follow-Up
- Email Tracker Under $10/Month for Outlook
- Best Email Tracker with Confidence Scoring
- Best Mailtrack Alternative for Outlook
- Best Mixmax Alternative for Outlook
- Best Email Tracker for HubSpot Users
- Best Email Tracker for Salesforce Users
- Best Email Tracker for Pipedrive Users
- Best Email Tracker for Startups in 2026
- Best Email Tracker for Recruiters in 2026
- Best Email Tracker for Consultants and Agencies in 2026
- Best Email Tracker for Investor Outreach and Fundraising in 2026
- Best Email Tracker for Customer Success Teams in 2026
- Best Mailtracker Alternatives for Outlook and Gmail in 2026
- Best Email Tracker for Real Estate Agents in 2026
- Best Email Tracker for Financial Advisors in 2026
- Best Email Tracker for Marketing Agencies in 2026
- Best Email Tracker for Account Executives in 2026
- Best Email Tracker for SDRs and BDRs in 2026
- Best Email Tracker With Zapier Integration in 2026
Head-to-heads
58 pages
- Yesware vs Mailtrack in 2026: Which Wins?
- Yesware vs Mixmax in 2026: Which Wins?
- Mixmax vs Mailtrack in 2026: Which Wins?
- Streak vs Mixmax in 2026: Which Wins?
- Yesware vs Streak in 2026: Which Wins?
- Yesware vs HubSpot Sales Hub in 2026: Which Wins?
- Saleshandy vs Yesware in 2026: Which Wins?
- Saleshandy vs GMass in 2026: Which Wins?
- Mailtrack vs Streak in 2026: Which Wins?
- Mixmax vs HubSpot Sales Hub in 2026: Which Wins?
- Streak vs HubSpot Sales Hub in 2026: Which Wins?
- GMass vs Mailtrack in 2026: Which Wins?
- Saleshandy vs Mailtrack (2026): Which Wins?
- Saleshandy vs Mixmax (2026): Which Wins?
- HubSpot Sales Hub vs Saleshandy (2026)
- Right Inbox vs Mailtrack (2026): Which Wins?
- Boomerang vs Mailtrack (2026): Which Wins?
- Streak vs Mailtrack (2026): Which Wins?
- GMass vs Mixmax (2026): Which Wins?
- HubSpot Sales Hub vs Mailtrack (2026)
- Snov.io vs Saleshandy (2026): Which Wins?
- Mailbutler vs Mailtrack (2026): Which Wins?
- Right Inbox vs Streak (2026): Which Wins?
- EmailAnalytics vs Yesware (2026): Which Wins?
- Vocus.io vs Mailtrack (2026): Which Wins?
- Cirrus Insight vs Yesware (2026): Which Wins?
- Cirrus Insight vs HubSpot Sales Hub (2026)
- Right Inbox vs Yesware (2026): Which Wins?
- Mailbutler vs Yesware (2026): Which Wins?
- EmailAnalytics vs Mailtrack (2026): Which Wins?
- Vocus.io vs Yesware (2026): Which Wins?
- Boomerang vs Yesware (2026): Which Wins?
- Snov.io vs Mailtrack (2026): Which Wins?
- Streak vs Saleshandy (2026): Which Wins?
- Boomerang vs Streak (2026): Which Wins?
- Mixmax vs Saleshandy (2026): Which Wins?
- Mailbutler vs Mixmax (2026): Which Wins?
- Snov.io vs Yesware (2026): Which Wins?
- GMass vs Yesware (2026): Which Wins?
- Right Inbox vs Mixmax (2026): Which Wins?
- EmailAnalytics vs Mixmax (2026): Which Wins?
- Cirrus Insight vs Mailtrack (2026): Which Wins?
- Vocus.io vs Saleshandy (2026): Which Wins?
- Boomerang vs HubSpot Sales Hub (2026)
- Mailbutler vs HubSpot Sales Hub (2026)
- Snov.io vs GMass (2026): Which Wins?
- EmailAnalytics vs Streak (2026): Which Wins?
- EmailAnalytics vs HubSpot Sales Hub (2026)
- Cirrus Insight vs Streak (2026): Which Wins?
- Snov.io vs Mixmax (2026): Which Wins?
- Boomerang vs Mixmax (2026): Which Wins?
- Right Inbox vs Saleshandy (2026): Which Wins?
- Mailbutler vs Saleshandy (2026): Which Wins?
- EmailAnalytics vs Saleshandy (2026): Which Wins?
- Cirrus Insight vs Saleshandy (2026): Which Wins?
- Right Inbox vs HubSpot Sales Hub (2026)
- Snov.io vs Streak (2026): Which Wins?
- Vocus.io vs Mixmax (2026): Which Wins?
Glossary
45 pages
- Apple Mail Privacy Protection
- Email Tracking Pixel
- Email Open Rate
- Gmail Image Proxy
- Email Deliverability
- SPF, DKIM, and DMARC
- Sender Reputation
- Cold Email
- Email Bounce Rate
- SPF Record
- DKIM Signature
- DMARC Policy
- BIMI
- Email Warmup
- Soft Bounce
- Hard Bounce
- Reply Rate
- Reply Sentiment Analysis
- Hot Lead Detection
- Send Time Optimization
- Email Engagement Score
- Office.js Add-in
- Click-Through Rate
- Unsubscribe Rate
- Smart Compose
- Inbox Placement
- Spam Trap
- Email Blacklist
- Catch-All Email
- MX Record
- Tracking Link Wrapper
- Email Suppression List
- Mailbox Provider
- Email Throttling
- Double Opt-In
- Email Header Analysis
- Transactional Email
- Cold vs Warm Outreach
- Email Tracking Pixel Detection
- Preview Text
- Open Tracking vs Click Tracking
- Email Segmentation
- Email Automation
- Spam Folder vs Quarantine
- Engagement Time of Day
Features
16 pages
- Automated Follow-Up Sequences
- Multi-Channel Outreach (Email + LinkedIn)
- LinkedIn Automated Follow-Up
- Email Open Confidence Scoring
- Diagnose: Per-Open Evidence View
- Hot Lead Detection
- AI Reply Sentiment Analysis
- Unified Outlook + Gmail Dashboard
- Send-Time Optimization
- Metadata-Only Privacy Architecture
- Real-Time Push Notifications
- Document Link Tracking
- Team Dashboards
- Smart Compose AI Drafting
- Engagement Velocity Scoring
- AI Follow-Up Suggestions
Outsolvi
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Everything above is free to read and free to use. The product itself tells you which of your sent emails were opened by an actual person rather than a scanner. 14-day free trial, no card.
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