Contact not receiving email although it says open

We send important emails to our partners through Hubspot email. I found out that a few of our partners are not receiving the emails even though their contact records show that it was “opened”. What can I do to ensure it gets in their inbox?

Hi @MNold21,

This sounds like the email may have ended up in a quarantine on the receiver’s end. They would have to check with their IT or in their spam folders as the email probably ended up there.

The most important thing for email deliverabilty is authenticating your sending domain. Have you done this? Manage your email authentication

In certain sensitive industries or when the receiver has set up strict email guidelines, there is unfortunately no guarantee that an email will go through and there’s little you can do from afar if the receiver has set up these strict policies.

Best regards