Verify candidate emails from LinkedIn, Apollo, GitHub, and ATS exports before outreach — so your messages reach real inboxes, not bounce logs.
Corporate emails expire within 30-90 days when a candidate changes jobs. A list from 6 months ago can have 20%+ invalid addresses — all potential bounces.
Gmail and Outlook monitor bounce rates by sending domain. Above 2% bounce rate, your domain is throttled for ALL outreach — not just the bounced campaign. Candidates stop seeing your messages.
Applicant Tracking Systems accumulate emails from years of applications. Without periodic cleaning, ATS email databases become increasingly unreliable for re-engagement campaigns.
Personalized cold outreach to invalid addresses is wasted effort. Verification filters your list before outreach so every message has a recipient.
Export your LinkedIn Sales Navigator or Recruiter results. Upload the CSV to BounceZero. Verify before sending InMail alternatives or email campaigns.
Apollo and Hunter provide email guesses — not guaranteed deliverable addresses. Run every sourced list through BounceZero before your sequence starts.
Before emailing past applicants from your ATS, verify the full list. Remove invalids and disposables. Protect your sending domain.
Candidates who apply via your careers portal enter emails. BounceZero API validates in real time before the form submits — ensuring ATS records are clean from the start.
Recruitment agencies manage thousands of candidate records. Quarterly list cleaning with BounceZero keeps bounce rates low across all client campaigns.
Sourcing hiring manager emails from company websites and LinkedIn. Verify before cold outreach to protect your personal domain reputation.
Candidate emails from LinkedIn, Apollo, and ATS exports have 5-15% invalid rates. Invalid addresses cause hard bounces that accumulate in your sending domain reputation. Above 2% bounce rate, Gmail and Outlook throttle your entire domain.
Typically 5-15% depending on list age. For lists older than 6 months, invalid rates reach 20-25% — corporate emails expire when candidates change jobs.
Yes. Upload any CSV of sourced emails — LinkedIn, Apollo, Hunter, or manual research. BounceZero verifies all sources with the same 5-stage pipeline and returns valid/invalid/risky results.
Keeping bounce rate below 0.5% keeps your domain in good standing with Gmail and Outlook. Verification before each campaign removes invalids before they become bounces — maintaining high inbox placement rates for all future outreach.
Yes. BounceZero accepts CSV uploads up to millions of rows. Processing speed: approximately 10,000 emails per minute. A 50,000-candidate list takes about 5 minutes. Results downloadable as CSV with all 40+ signal fields.
100 free verifications. Bulk CSV upload. Results in minutes. $3/1K thereafter.
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Block fake signups, reduce fraud at KYC
Block invalid addresses at checkout and signup
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Block disposable emails at signup — real-time API
Protect sender reputation before outreach
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