Email verification isn’t just a checkbox—it’s your first line of defense against wasted sends and spam folders. But once you’ve scrubbed your list with ZUHAL, what do those results actually mean? Let’s break down every status code, so you can turn data into decisive action.

ZUHAL’s Email Verification Results Explained
When you verify a list with ZUHAL, each address is classified into one of six categories. Here’s how to interpret them:

1. Valid ✅

• The email exists, the domain is active and the mailbox is ready to receive your message.
• Gold-standard deliverability. These addresses are your engaged audience.
• Keep them! Prioritize Valid contacts for high-stakes campaigns.

2. Invalid ❌

• The address is undeliverable (e.g., typo like “gamil.com”, deleted accounts or defunct domains).
• Sending to these guarantees hard bounces, hurting your sender score.
• Remove immediately. ZUHAL auto-flags these for deletion.

3. Catch-All 🌐

• The domain accepts all emails, even if the mailbox isn’t real (common in corporate domains like “@apple.com”).
• Risky. Some emails may land, but bounce rates vary.
• Segment these. Use ZUHAL’s real-time API to check again before blasting.

4. Disposable 🗑️

• Temporary addresses (e.g., Mailinator, GuerrillaMail) used for short-term sign-ups.
• Low engagement, high spam risk. These users rarely convert.
• Exclude from nurture flows. Keep only if part of a time-sensitive offer.

5. Risky ⚠️

• ZUHAL’s AI detected red flags: spam traps, role-based addresses (“sales@”, “info@”), or newly registered domains.
• High chance of spam complaints or blocks.
• Proceed with caution. Remove or re-engage with double opt-in.

6. Unknown ❓

• The email’s status couldn’t be confirmed (e.g., server timeouts, throttling by the recipient’s ESP).
• Unpredictable. Could be valid but hidden behind security filters.
• Retry verification later or exclude from critical campaigns.

Why Accurate Verification is Non-Negotiable
Sending blindly is like gambling with your domain reputation. Here’s how ZUHAL’s precision protects your ROI:

• Slash Bounce Rates: Remove Invalid addresses before they trigger ESP penalties.
• Boost Engagement: Disposable and Risky addresses skew metrics. Clean lists = truer open/click rates.
• Avoid Blacklists: Spam traps lurk in old lists. ZUHAL’s AI detects 99.3% of them.
• Save Money: Why pay $0.03 per email to send to dead ends?

From Data to Action: How to Use ZUHAL’s Results

Segment Smartly:

• Valid + Catch-All: Perfect for newsletters and product launches.
• Risky: A/B test re-engagement campaigns.
• Disposable: Use for one-time discounts.
• Automate Cleanups: Connect ZUHAL to your CRM for real-time verification. New signups? Verified instantly.
• Audit Quarterly: Re-verify old segments. Even Valid addresses can go stale.

Case Study: How FitFuel Cut Bounces by 67%

• Challenge: 28% bounce rate from aged lists.
• Solution: ZUHAL segmented 12K emails, removing Invalid/Risky addresses.
• Result: 91% deliverability, 3X ROI on reactivation campaigns.

Your Next Step: Turn Insights into Inbox Wins
Don’t let cryptic status codes paralyze your strategy. ZUHAL gives you the why behind every result—so you can act fast.

Try ZUHAL Free → Clean 500 emails instantly. No credit card needed.

FAQ: Quick Answers for Smarter Sending

Q: How often should I verify my list?
A: Monthly for active lists. Quarterly for cold audiences.

Q: Can Catch-All emails ever be safe?
A: Yes! Pair ZUHAL with engagement scoring to identify active users.

Q: What makes ZUHAL’s “Risky” category unique?
A: Our AI cross-references global spam traps and honeypot databases in real time.