
The Hidden Cost of Invalid Emails
How Poor Email Quality Undermines Marketing Effectiveness
The Real Impact of Invalid Emails
The average marketing database contains 20-30% invalid or risky email addresses, directly causing:
- Damaged sender reputation when messages bounce
- Wasted marketing budget on undeliverable messages
- Skewed campaign metrics leading to poor decision-making
- Increased risk of being flagged as spam
- Potential blacklisting by email service providers
Manual verification is practically impossible at scale - checking just 1,000 emails would take approximately 83 hours of labor. Meanwhile, the cost of doing nothing continues to drain resources and undermine campaign effectiveness with every send.