Create tracking pixel resources for outbound email
Generate explicit tracking pixels that can be attached to campaigns, onboarding flows, and operational messages under API control.
Capture open events without splitting your stack
Use MailSlurp open tracking to capture email-open signals and route them into downstream workflows without bolting on another standalone tracking tool.
Trusted by top companies worldwide
Product features
Open-tracking capabilities centered on pixels and message telemetry
Create tracking resources, collect view events, and inspect open-state data as part of the same message workflow.
Explore
Serve pixels that mark messages as viewed
MailSlurp hosts the tracking image endpoint that records the view event when the recipient client loads the message.
Inspect pixel metadata and tracking-resource inventories
Review tracking pixel records and list views so teams can understand which telemetry resources exist and how they map to sent-email workflows.
Correlate open telemetry with sent-mail analysis
Connect open-state data back to sent messages for campaign reviews, support investigations, and downstream workflow analysis.
Track opens alongside routing and inbox workflows
Keep event collection in the same platform used for message delivery, inbox inspection, and workflow automation.
Route open events into analytics and operations
Push opens into webhooks, CRMs, or internal systems so product and lifecycle teams can act on message engagement signals quickly.
Review signals next to campaign and sender health
Connect opens to the same reliability workflow used for campaign QA, sender posture, and launch monitoring.
Developer integration
Automate domain checks, alerts, and message signals with APIs
Move sender posture checks and reliability events into scheduled jobs, dashboards, or alert pipelines with the same API.
- Webhook-ready event handoff
- Programmatic domain and signal checks
- Shared visibility across engineering and lifecycle teams
Next step
Start with signup or docs
Use the free account to validate the workflow in your own stack, then move into implementation details in the docs.