UTM and email click tracking
Most email service providers wrap links in a click-tracking redirect so they can count opens and clicks. That redirect must preserve the UTM parameters on the final destination URL, or your web analytics will lose the campaign attribution even though the ESP recorded the click. This page covers how the two layers coexist.
Two tracking layers
Email click tracking and UTM tagging solve different problems. The ESP redirect counts that a link was clicked inside the email; UTM parameters tell your web analytics which campaign drove the resulting site visit. You generally want both.
The key is that the ESP's wrapped link, after redirecting, must land on a URL that still carries utm_source, utm_medium, and utm_campaign. If the ESP strips query parameters or points to a bare URL, web-analytics attribution is lost.
- ESP redirect = click counted in the email tool
- UTM = campaign attributed in web analytics
- Final destination URL must retain the UTM query string
Keeping tags through the redirect
Put UTM parameters on the destination URL you give the ESP, and confirm the ESP appends or preserves them rather than dropping the query string. Test by clicking a real send and checking the final landed URL still has the tags.
Avoid double-encoding: if the ESP URL-encodes the destination, make sure the decoded final URL is still a valid, tagged link. Watch for the redirect briefly showing the ESP domain as a referrer — the UTM source, not the referrer, should drive attribution.
How it appears in analytics and logs
Email clicks that show in your ESP but arrive as direct in web analytics signal that the tracking redirect dropped or never carried the UTM parameters on the final URL.
Diagnostic use case
Ensure that ESP click-tracking redirects pass UTM parameters through to the landing page so email campaigns attribute in web analytics, not just in the ESP's own click reports.
What WebmasterID can help detect
WebmasterID records the UTM-tagged landing hit after the email redirect resolves, so email campaigns appear as their own source even though a tracking hop sat in between.
Common mistakes
- Tagging the email body link but letting the ESP redirect strip the query string.
- Relying on referrer (the ESP domain) instead of UTM for email attribution.
- Appending subscriber identifiers to the UTM, leaking personal data into URLs.
Privacy and accuracy notes
UTM parameters on email links describe the campaign, not the subscriber; avoid appending personal identifiers to the URL. WebmasterID records the landing touch without raw IP, exact location, or a subscriber identity.
Frequently asked questions
- Why does email show as direct even though the ESP logged clicks?
- The click-tracking redirect likely landed on a URL without UTM parameters. Add UTM to the destination URL and confirm the ESP preserves it through the redirect.
Related pages
- Newsletter campaign tracking with UTM
Email clients usually send no web referrer, so newsletter clicks need UTM tags to be attributed at all. This page gives a recommended utm_medium=email structure with per-send utm_campaign naming, and the hard privacy rule that subscriber identifiers must never appear in a UTM.
- UTM parameters in redirects
Redirects are where UTM attribution quietly dies. A 301/302 or a link shortener that does not forward the query string strips your tags before the visitor reaches the landing page. This page explains how to preserve UTM parameters through redirects, shorteners, and vanity URLs.
- Marketing vs transactional email UTM
Not every email is a campaign. Marketing sends belong in your UTM-tagged campaign reporting; transactional emails like receipts, password resets, and notifications do not. This page draws the line so functional clicks never inflate your marketing numbers.
- Campaign links
Build durable tagged links that survive redirects.
Sources and verification notes
- Google Analytics Help — Custom campaigns (UTM)Standard UTM parameters that must persist on the email destination URL.
Last reviewed 2026-06-24. Facts are checked against primary/official sources where available; uncertain specifics are marked “Data not yet verified” rather than guessed.