Tracking issues. Mails "open" by other than recepients....

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I am tracking my emails sent via outlook. The activity feed seems to work but I see some of my emails "open" by someone from various locations in the world. I know the recepients and I know it was not forwarded to anyone present in these locations.

How is this possible? Is there a potential security issue here?

Thanks for your help

1 Réponse
Contributeur occasionnel

Our sales team is also facing this same issue. 


Hubspot, please follow up.

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