Can someone with hubspot sidekickopen their sent email?
What I don't understand is how a 3rd party can possibly know when I open their email? Do web-based email clients automatically provide reading-proof to all emails? Because I remember Outlook was asking me whether I wanted to actually send proof of reading or not. If so, how do I disable it?
Sidekick is designed to track emails sent to individual email addresses. Sidekickopen tracks emails by placing an invisible, 1-pixel image inside the message. When the email is opened, the image loads, and Sidekick notifies you that the email was received.