Are you super-admin or the user user who originally scheduled the email; only those users can delete a scheduled 1:1 email from the timeline.
Open each contact record and find the email activity labeled “Scheduled”, on that email activity, click the down caret to open actions then delete (upper right) to cancel the scheduled send.
Are you super-admin or the user user who originally scheduled the email; only those users can delete a scheduled 1:1 email from the timeline.
Open each contact record and find the email activity labeled “Scheduled”, on that email activity, click the down caret to open actions then delete (upper right) to cancel the scheduled send.