ESP Overpayment Calculator
Email marketing platforms charge you based on contact volume, even if 20% of your list is completely dead. Calculate your hidden waste and discover how much you can save.
Are you overpaying your ESP for dead contacts?
Industry data shows 22% of email lists decay each year. Most ESPs bill you for invalid contacts that never open.
You are paying ~$308/month just to store ~22,000 non-existent emails that hurt your open rates and sender reputation.
Why ESPs Overcharge for Dead Contacts
1. The 22% Annual Decay Rate
People change jobs, abandon disposable addresses, or disable old accounts. Without regular cleaning, nearly a quarter of your list turns invalid each year.
2. Tiered Pricing Penalties
Exceeding a contact tier by even a single email bumps you into a much more expensive monthly pricing bracket on platforms like Klaviyo and Mailchimp.
3. Permanent Deliverability Harm
Repeatedly sending to invalid mailboxes signals to Gmail and Outlook that your domain lacks list hygiene, landing future campaigns in the spam folder.
Need to verify more than one email?
Our free web tools are great for single quick checks. For cold outreach, email marketing, or database cleaning, use MailVeri Bulk.
| Feature | ESP Cost Calculator | MailVeri Bulk Engine |
|---|---|---|
Syntax & Domain MX Check Detects typos & non-existent domains | ||
Deep SMTP Handshake Pings recipient mail server directly without sending email | ||
Catch-All & Disposable Detection Catches temporary mailboxes & risky accept-all domains | ||
Spam Trap & Honeypot Filtering Protects domain reputation from blacklists | ||
Processing Speed High-speed distributed verification queue | 1 email / lookup | 100,000 emails / ~30 mins |
Batch File Upload Auto-detects email columns with zero setup | Up to 1,000,000 rows (CSV, XLSX, TXT) | |
Trial & Expiration No credit card required | Manual lookups only | 1,000 Free Credits • Never expire |