Your contact list is decaying faster than you realize. Recent data shows B2B contact information decays at 3.6% per month, up from the traditional 1.5-2% rate. That means nearly three-quarters of your prospect database could be outdated within 12 months.
Most sales teams know they should verify emails before launching campaigns. But email verification alone misses a critical problem: someone can have a perfectly valid email address yet no longer work at that company. You end up reaching ghosts.
AvairAI solves this with two-layer contact verification. Layer one checks email deliverability. Layer two confirms the person still works there. Together, they reduce bounce rates from 30% to under 2%. In this article, you will learn exactly how to use this system to clean your data before every campaign.
Key Takeaways
- Data decays faster than most teams realize: 70.8% of B2B contacts experience changes within 12 months, including job title changes, phone number updates and email address modifications
- Email verification alone is not enough: A valid email does not mean the person still works there, which is why you need employment verification as the second layer
- Two-layer verification delivers dramatic results: AvairAI's system reduces bounce rates from 30% to under 2% by checking both email deliverability and current employment
- One-click verification saves hours: Instead of manual list cleaning across multiple tools, verify entire contact lists in minutes before any campaign launch
Why Your Contact Data Is Already Outdated
The Accelerating Data Decay Problem
B2B contact data decays between 22.5% and 70.3% annually, depending on your industry. Technology and professional services sectors see the highest rates. The numbers behind this decay are striking: 65.8% of contacts change job titles or functions yearly, 42.9% change phone numbers and 37.3% change email addresses.
What makes this worse is the acceleration. Monthly email decay rates hit 3.6% in late 2024, nearly double the historical average. Traditional quarterly database refreshes cannot keep up anymore. By the time you update your lists every 90 days, 10% or more has already gone stale.
For sales teams, this creates a compounding problem. Every campaign launched against decayed data wastes outreach capacity. Your AI agent sends emails that bounce. Your calls reach disconnected numbers. Your sender reputation takes hits that take months to repair.
The Hidden Cost of Bad Data
The financial impact goes beyond wasted time. Research shows poor data quality costs US businesses $3.1 trillion annually, with individual organizations losing $12.9 to $15 million per year. Sales representatives waste 27.3% of their time pursuing bad leads. That is 546 hours annually per rep spent on contacts who have moved on.
Email deliverability suffers directly from high bounce rates. Industry benchmarks show bounce rates above 2% trigger red flags with email service providers. Once your domain reputation drops, even your valid emails start landing in spam folders. Recovery takes months of careful list hygiene and reduced sending volume.
This is where the Pair Selling approach applies to data quality. AI should handle the tedious work of verification so salespeople can focus on actual selling. Manual list cleaning across multiple tools wastes human talent on work that machines do better.
Why Email Verification Alone Is Not Enough
The Employment Verification Gap
Traditional email verification checks syntax, domain validity and mailbox accessibility. These checks catch obvious problems like typos, expired domains and full inboxes. But they miss a common scenario in B2B sales.
Consider this: Someone leaves their job. Their company keeps their email active for forwarding purposes, or the domain simply accepts all incoming mail. Your email verification tool marks this address as valid. You launch your campaign. Your emails land in an inbox that nobody reads, or worse, reach the IT administrator who marks you as spam.
This happens more often than sales teams realize. Only 23.6% of B2B marketers verify lists before campaigns, and even those who do typically stop at email verification. The employment question goes unasked.
Real-World Scenario: The Ghost Outreach Problem
Imagine your target account list includes 500 contacts from your CRM. You run email verification. 450 come back as valid. You launch a 12-touch campaign confident your data is clean.
Three weeks later, results disappoint. Response rates are half what you expected. You dig into the data and discover 15% of your "valid" contacts left their companies months ago. Some emails bounced as people finally got removed from systems. Others sat unopened in abandoned inboxes. A few triggered spam complaints from forwarding recipients who never asked to hear from you.
This is not a hypothetical. It is what happens when verification stops at the email level. The contact data quality guide explains why employment verification closes this gap.
How AvairAI's Two-Layer Verification Works
Layer 1: Email Deliverability Verification
The first layer validates that emails will actually reach inboxes. This includes syntax validation to catch formatting errors, domain verification to confirm the company email system exists, mailbox accessibility checks to ensure the specific address receives mail, spam trap detection to avoid known honeypot addresses and role-based email identification to flag addresses like info@ or sales@ that rarely convert.
This layer catches the obvious problems. Invalid addresses, defunct companies and technical issues get filtered out before they can damage your sender reputation.
Layer 2: Employment Verification
The second layer answers a question email verification cannot: Does this person still work there?
AvairAI's AI-powered contact verification checks contacts against current employment databases. This catches recent job changes that traditional verification misses. Someone might have a valid email but started a new role last month. This layer flags that discrepancy.
The two layers work together. Email verification without employment verification lets ghost contacts through. Employment verification without email verification wastes time on undeliverable addresses. Combined, they create confidence that your outreach reaches real people at their current companies.
The Traffic Light Classification System
After verification completes, every contact receives a classification:
GREEN (Verified): Email deliverability confirmed and employment verified. These contacts are ready for your campaign. Launch with confidence.
YELLOW (Review Needed): One layer passed but the other flagged concerns. Maybe the email validates but employment data is inconclusive. These merit a quick manual review before inclusion.
RED (Remove): Failed verification on one or both layers. Invalid email, confirmed departure or other issues mean these contacts should not receive outreach. Remove them before launch.
This traffic light system makes decisions simple. Green means go. Yellow means pause and check. Red means stop.
Step-by-Step: Verifying Your Contacts in AvairAI
Step 1: Access Your Contact List
Navigate to your campaign in AvairAI. Open the Contacts section where your target list lives. You can verify contacts you uploaded manually or those generated from AvairAI's 105M+ contact database.
Step 2: Run One-Click Verification
Select the contacts you want to verify. This can be your entire list or a subset. Click the Verify button. AvairAI runs both verification layers automatically. You do not need to configure separate tools or manage multiple verification services.
Verification speed depends on list size. A few hundred contacts complete in minutes. Larger lists may take longer but still require no manual intervention. The system handles everything.
Step 3: Review and Act on Results
Once verification completes, review your results by classification:
For GREEN contacts: No action needed. These are verified and ready for outreach.
For YELLOW contacts: Open each flagged contact and check the specific concern. Sometimes a brief LinkedIn lookup confirms current employment. Other times, the flag indicates genuine uncertainty worth respecting.
For RED contacts: Remove these from your campaign. Sending to them risks bounces, spam complaints and reputation damage. The cost of removing them is far lower than the cost of including them.
Step 4: Launch with Confidence
With verification complete and problem contacts removed, your campaign targets only confirmed, current contacts. This means lower bounce rates, better deliverability, higher engagement and protected sender reputation.
The beauty of building verification into your workflow is that it becomes automatic. Every campaign gets clean data. Every launch protects your domain. Every outreach reaches real prospects.
The Impact: Before and After Verification
The difference two-layer verification makes is measurable:
Before verification: Industry average bounce rates run 10-30% for purchased or aged lists. Domain reputation suffers. Inbox placement drops. Campaigns underperform.
After verification: AvairAI users see bounce rates under 2%. Sender reputation stays healthy. Emails land in primary inboxes. Outreach actually reaches prospects.
This connects directly to Pair Selling. AI handles the tedious verification work. Salespeople focus on the conversations that result from clean, verified outreach. Neither wastes time on contacts who left their jobs six months ago.
The Bottom Line
Contact data decay accelerates every year. Email verification alone misses the employment changes that turn valid emails into ghost outreach. Two-layer verification catches both problems before they damage your campaigns.
AvairAI makes this simple. One click verifies both email deliverability and current employment. The traffic light system tells you exactly which contacts to include, review or remove. Results speak clearly: bounce rates drop from 30% to under 2%.
Stop sending campaigns to outdated contacts. Verify your data before every launch. Your sender reputation, response rates and pipeline will thank you.
Ready to clean your contact data? AvairAI's two-layer verification is built into every campaign. Create your first verified campaign in minutes.




