Your software
My Mautic version is: 5.1.1
My PHP version is: 8.1.28
My Database type and version is: 10.6.18-MariaDB-0ubuntu0.22.04.1
Your problem
- My problem is:
- I let Mautic to track the website for a few months
- I imported the first contacts
- Sent a few emails
- I thought Mautic would merge tracked contacts with users who clicked the email (by the website cookie data), but it doesn’t identify them.
Why? Mautic has all the info needed to identify them 
- What I tried to fix:
Everything should be set correctly
- The email is the unique identifier (I have two unique identifiers (Email and ID) with Contact Merge Settings set to “OR”)
- It is publicly editable
https://docs.mautic.org/en/5.x/contacts/manage_contacts.html#identify-visitors-by-tracking-url
https://docs.mautic.org/en/5.x/contacts/manage_contacts.html#managing-duplicates
I also checked this thread where is it written it should work, but it doesn’t.
- OK - Is the tracking script installed correctly? - YES
- OK - Is your domain correctly added to CORS (under configuration) - YES
- OK - Is your browser any kind of ad blockers that could be stopping the tracking script form working? - NO
- OK - test using incognito mode in chrome - YES
- OK - Are using any kind of VPN that might be scrolling your IP or an caching extensions that might be messing with the tacking script - NO
I appreciate your help.