🎙️ The Playbook by ClearSync
Episode 02: Why Email Verification Saves Your Deliverability Score
“A clean list isn’t optional — it’s the difference between landing in inboxes or vanishing into spam.”
📧 Why Email Verification Matters
Email verification is the process of checking if an email address is valid and able to receive messages. It ensures you're not sending to fake, inactive, or risky addresses that could damage your sender reputation.
🔎 What Happens Without It?
- Bounce Rates Skyrocket: According to Campaign Monitor, bounce rates over 2% are considered problematic. Unverified lists often exceed 5–10%.
- Spam Filters Get Triggered: High bounce rates and complaints cause ISPs to flag your domain, pushing you to spam folders.
- Campaign ROI Plummets: Every undelivered email is wasted ad spend. Worse, you lose trust with ESPs like HubSpot or Mailchimp.
📊 The Data Doesn’t Lie
- HubSpot recommends keeping your bounce rate under 2% for optimal deliverability.
- Data from ReturnPath shows that 20% of emails never reach the inbox due to poor sender reputation — often linked to unverified lists.
- EmailListVerify reports that over 15% of most B2B email lists are invalid without regular cleaning.
✅ How ClearSync Helps
ClearSync automatically verifies emails in your HubSpot CRM, flagging invalid addresses, role-based emails, and risky domains — before they ruin your sender reputation.
- Checks syntax, domain validity, MX records, and inbox activity
- Removes catch-all, disposable, and blacklisted emails
- Runs automatically in the background — no export/import required
🧠 Final Thought
Sending without verifying is like cold calling numbers from a phone book — inefficient, outdated, and dangerous for your brand.
Want to fix your email game before it tanks your campaigns?
👉 Verify your list with ClearSync today
Next on The Playbook: Episode 03 — LinkedIn Enrichment: What It Is & Why Your Sales Team Needs It