This is a subject that Customer Support keep skirting round, so I thought I should ask the community:

What data is actually collected through the embedded pixel added into emails through the Email Insights function?

Insights is an all-on or all-off facility, so it doesn't appear that a contact can opt out of this.

I'm concerned that this won't comply with the terms of GDPR, and I can't find out whether there is any personally-identifiable data within that.

Thanks very much.

Peter