Vital CRM
How do I know who opened the marketing email?

Make sure that [Track if email is opened] has been enabled.

Go to [Email] tab, select the email and click on [Messages opened] to check the list of receivers who opened the marketing email.

Go to [Email] tab, select the email and click on [Messages opened] to check the list of receivers who opened the marketing email.
https://faq.vitalyun.com/EN/CRM#3972