This situation typically occurs when an email was found by a data provider but failed the validation check. Here's what's happening: 1. When the email waterfall runs, it goes through various providers to find emails.
2. Each found email goes through validation (by default using ZeroBounce).
3. If an email fails validation, the waterfall continues searching, which is why you might see it running even after finding an email.To investigate this: ** You can unhide the validation columns to see how the validation process is working
** Check if the emails are being marked as invalid or if they're catch-all emails
* If needed, you can adjust the validation settings - by default, catch-all emails are returned as valid, but you can enable the "only mark safe to send" option for a more conservative approach
Sources:Enrich People (Waterfalls) [Automated Outbound] - Clay UniversityEnrich People (Waterfalls) [Clay 101] - Clay University