Yikes! You definitely want to investigate why your Leads aren't receiving their Funnel emails.
There are a few common issues that could prevent your Leads from receiving the Funnel emails:
- The Lead unsubscribed from the Funnel.
- The Lead's email address is invalid.
- The email inside the Funnel is disabled.
- The email is set up to send to multiple segments.
For issue #1 and #2, please refer to article Why is My Funnel Turned Off
For issue #2, refer to article title Enabling and Disabling An Email
For issue #3, refer to article title Create an Email