Why you must validate emails before sending cold outreach

Emails pulled from lead enrichment tools like GitLeads, Apollo, or Origami aren't always deliverable. Before sending a single cold email, you should run your list through a verification tool — the speaker uses one called MillionVerifier. It classifies each email as good, risky, catchall, or bad. The reason this step is non-negotiable is simple: if you send cold email to invalid addresses, you will run into deliverability problems. Your sender reputation tanks, and future emails — even to valid addresses — start landing in spam. The verification step is a small investment that protects everything downstream.