Mailtrack Review — Honest Pros, Cons & Pricing (2026)

Category: Email tracking extension for Gmail

Also known as: mailtrack.

Overview

Mailtrack is a Gmail extension that adds tracking pixels to outgoing emails to show when recipients open them. It is one of the most popular free email trackers with millions of users. For cold email, however, tracking pixels are a liability. They add weight to messages and trigger spam filters, reducing inbox placement rates. Mailtrack is fine for internal or relationship emails where deliverability is not a concern, but cold email senders should avoid pixel-based tracking entirely and focus on reply rates instead.

Pricing

Free basic tracking with Mailtrack branding. Pro: $4.99/month. Advanced: $9.99/month.

Strengths

Simple Gmail integration with one-click setup
Free tier for basic email tracking
Real-time notifications when emails are opened
Link click tracking on paid plans

Weaknesses

Tracking pixels actively harm cold email deliverability by triggering spam filters
Free plan adds 'Sent with Mailtrack' branding to every email
Only works with Gmail, not other email providers
Encourages focus on opens rather than replies, which is the wrong metric for cold email

Best For

Internal teams sending relationship emails where deliverability is not at risk
Freelancers tracking proposals or invoices sent via Gmail
Users wanting simple free email tracking for non-cold-email use cases

Not Ideal For

Cold email senders (tracking pixels hurt inbox placement)
Anyone sending outbound at scale where deliverability matters