All Comparisons
Ranked List5 tools comparedUpdated June 12, 2026

Best Email Tracker for Marketing Agencies in 2026

Agencies send a lot of email on behalf of clients (proposals, project updates, billing, performance reports) and on behalf of themselves (BD outreach, recruiting, vendor management). Tracking needs to support per-client visibility without polluting client-facing sends with branded footers.

The right tracker for agency work is silent (no footer), per-thread filterable, supports both Outlook (enterprise client communication) and Gmail (independent agency staff), and provides AI signals for high-value pitches.

TL;DR

Outsolvi is the right pick for most agencies: silent tracking (no footer), confidence-scored opens, native Outlook + Gmail at $7. Mixmax fits Gmail-only agencies needing scheduling polish. HubSpot Sales fits agencies running client lifecycle through HubSpot CRM.

How we ranked these tools

Each tracker scored on no-branded-footer (25%), per-client / per-thread filtering (20%), confidence-scored opens (20%), Outlook + Gmail parity (20%), and team workspace features (15%).

At a glance

RankToolStarting priceBest for
#1Outsolvi$7/user/mo yearly, $12 monthlyMarketing and creative agencies running daily client communication.
#2MixmaxSMB $29/user/mo yearly.Gmail-only agencies running calendar-heavy client work.
#3HubSpot Sales HubSales Hub Starter $20/user/moAgencies running client pipeline in HubSpot.
#4YeswarePro $15/user/mo yearly.Larger agencies with Salesforce CRM.
#5MailtrackFree with brandingPre-revenue solo agencies on Gmail.

Click any tool to jump to the full breakdown below.

1

Outsolvi

Silent confidence-scored tracking with AI at $7/user/mo, native Outlook + Gmail.

Best for

Marketing and creative agencies running daily client communication.

Pros
  • No branded footer on client-facing sends
  • Tier 1-5 confidence scoring
  • Per-thread, per-client filterable
  • Native Outlook + Gmail parity
Cons
  • •No agency-specific reporting templates
  • •No client-portal feature
Pricing

$7/user/mo yearly, $12 monthly. 14-day trial.

Verdict

The right pick for agencies whose load-bearing need is silent, accurate tracking on client outreach.

Try Outsolvi Free for 14 Days
2

Mixmax

Gmail productivity + calendar polish.

Full comparison
Best for

Gmail-only agencies running calendar-heavy client work.

Pros
  • Best Gmail calendar UX
  • Templates + sequences
  • Reasonable team features
Cons
  • •Gmail-only
  • •$29 + per seat
  • •No confidence scoring
Pricing

SMB $29/user/mo yearly.

Verdict

Right for Gmail-only agencies with heavy scheduling needs.

3

HubSpot Sales Hub

Sales-focused product inside HubSpot CRM.

Full comparison
Best for

Agencies running client pipeline in HubSpot.

Pros
  • HubSpot CRM context
  • Document tracking on pitches
  • Scalable platform
Cons
  • •AI gated to Pro
  • •Per-seat math expensive at scale
Pricing

Sales Hub Starter $20/user/mo. Pro $90+/mo.

Verdict

Right for HubSpot-committed agencies.

4

Yesware

Cross-platform tracker with Salesforce sync.

Full comparison
Best for

Larger agencies with Salesforce CRM.

Pros
  • Mature Salesforce sync
  • Outlook + Gmail
  • Team templates
Cons
  • •AI gated to Premium ($35)
  • •No confidence scoring
  • •Per-seat math heavier
Pricing

Pro $15/user/mo yearly.

Verdict

Right for Salesforce-tied agencies.

5

Mailtrack

Minimal Gmail tracker.

Full comparison
Best for

Pre-revenue solo agencies on Gmail.

Pros
  • Free tier
  • Lightweight
Cons
  • •Gmail-only
  • •Branded footer on free tier
  • •No team features
Pricing

Free with branding. Pro $4.99/user/mo yearly.

Verdict

Right only for solo Gmail agencies with light tracking needs.

Frequently asked questions

Will the recipient see I'm tracking client proposals?+

Outsolvi has no branded footer; tracking is invisible. Mailtrack appends 'Sent with Mailtrack' on free tier. Most other tools are silent at paid tiers.

Can I see per-client engagement in one dashboard?+

Outsolvi supports per-thread, per-recipient, and per-tag filtering. Agencies typically tag threads by client name for one-dashboard visibility.

Ready to try the #1 pick?

Outsolvi gives marketing agencies silent, accurate tracking on client outreach for $7/user/mo yearly. 14-day trial.

Start 14-Day Free Trial

No credit card required • Cancel anytime

More email-tracking comparisons

Best Email Tracking Software in 2026
7 tools • Updated May 24, 2026
Best Email Tracking for Outlook in 2026
6 tools • Updated May 24, 2026
Best Email Tracking for Gmail in 2026
7 tools • Updated May 24, 2026
Best Free Email Tracking in 2026
6 tools • Updated May 24, 2026
Best Email Tracking for Small Business in 2026
6 tools • Updated May 24, 2026
Best Cheap Email Tracking Under $10/mo in 2026
6 tools • Updated May 24, 2026
Best Saleshandy Alternative for Outlook (2026)
6 tools • Updated May 31, 2026
Best Email Tracker That Doesn't Store Message Body
5 tools • Updated May 31, 2026
Best Outlook Email Tracker with AI Follow-Up
5 tools • Updated May 31, 2026
Email Tracker Under $10/Month for Outlook
4 tools • Updated May 31, 2026
Best Email Tracker with Confidence Scoring
4 tools • Updated May 31, 2026
Best Mailtrack Alternative for Outlook
5 tools • Updated May 31, 2026
Best Mixmax Alternative for Outlook
5 tools • Updated May 31, 2026
Best Email Tracker for HubSpot Users
5 tools • Updated May 31, 2026
Best Email Tracker for Salesforce Users
5 tools • Updated May 31, 2026
Best Email Tracker for Pipedrive Users
5 tools • Updated May 31, 2026
Best Email Tracker for Startups in 2026
5 tools • Updated Jun 9, 2026
Best Email Tracker for Recruiters in 2026
5 tools • Updated Jun 9, 2026
Best Email Tracker for Consultants and Agencies in 2026
5 tools • Updated Jun 9, 2026
Best Email Tracker for Investor Outreach and Fundraising in 2026
5 tools • Updated Jun 9, 2026
Best Email Tracker for Customer Success Teams in 2026
5 tools • Updated Jun 9, 2026
Best Mailtracker Alternatives for Outlook and Gmail in 2026
5 tools • Updated Jun 9, 2026
Best Email Tracker for Real Estate Agents in 2026
5 tools • Updated Jun 12, 2026
Best Email Tracker for Financial Advisors in 2026
5 tools • Updated Jun 12, 2026
Best Email Tracker for Account Executives in 2026
6 tools • Updated Jun 12, 2026
Best Email Tracker for SDRs and BDRs in 2026
5 tools • Updated Jun 12, 2026
Best Email Tracker With Zapier Integration in 2026
5 tools • Updated Jun 12, 2026

More email-tracking research

Glossary terms, head-to-head comparisons, and feature deep-dives that complement this ranked list.

Ranked list
Best Email Tracking Software in 2026
For most B2B AE teams in 2026, Outsolvi is the right pick: native Outlook + Gmail parity, Tier 1 to 5 confiden…
Open
Article
AI Email Insights for Sales Teams: What Actually Works in 2026
Three AI features genuinely move the needle in 2026 sales email: open confidence scoring, reply sentiment clas…
Open
Feature
AI Reply Sentiment
Reply sentiment analysis runs on every incoming reply on tracked threads.
Open
Workflow
Engagement Velocity
Someone searching engagement-velocity tracking is typically a CS manager or revenue leader trying to surface e…
Open
Built for
For Customer Success Teams
Someone searching email tracking for Customer Success is typically a CS manager or CSM trying to surface engag…
Open
Free tool
Open Rate Checker
Applies the typical inflation factors per recipient-type segment (MPP ~30 percentage points, Gmail proxy ~10-15, corporate scanners ~20) to estimate the real rate.
Open
Glossary
Apple Mail Privacy Protection
Apple Mail Privacy Protection (MPP) is a privacy feature that launched with iOS 15 in September 2021. When ena…
Open
Use case
Sales Prospecting
Someone searching sales prospecting email tracking is an AE or sales operations lead trying to figure out whic…
Open
Industry
SaaS
Someone searching email tracking for SaaS is typically an AE, sales-ops lead, or RevOps manager at a B2B SaaS …
Open
Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed June 12, 2026Editorially independent

We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

About the authorMethodologyArticlesFree tools