MailSift — Email Verifier & Bulk Checker

Verify emails in real-time. Bulk email checker, MX DNS lookup, disposable domain detection & bounce rate reduction for outreach.

MailSift is the lightweight, privacy-first email verification tool built for sales teams, recruiters, and marketers who need clean lead lists and zero bounce rates. Tired of losing prospects to typos, invalid domains, or spam-trap disposable emails? Verify emails individually in real time or validate full batches with one-click CSV export directly from your browser. Key Features: • ⚡ Real-Time Syntax & Domain Check: Catch typos and verify active MX DNS records in under 300ms. • 📂 Bulk List Validation: Paste email batches and instantly categorize them into Valid, Risky, or Invalid. • 📥 One-Click CSV Export: Download clean, outreach-ready contact lists with a single click. • 🛡️ Disposable & Burner Shield: Detect temporary and burner inboxes (Mailinator, TempMail, etc.) to keep your sender reputation safe. • 💡 Smart Typo Suggestions: Misspelled "gmial.com" instead of "gmail.com"? MailSift flags it immediately. • 🏢 Corporate vs. Free Provider Filter: Easily distinguish B2B corporate emails from free webmail accounts (Gmail, Outlook, Yahoo). • 🖱️ Context Menu Lookup: Select any email text on any webpage, right-click, and verify it instantly. Why Choose MailSift? • Privacy First: Direct DNS lookups. We never store, sell, or log the emails you check. • Ultra-Fast Architecture: Zero bloat, instant results. • Daily Free Tier: Check your essential emails every day at zero cost. • MailSift Pro: Lifetime access for a single payment of $9.99. Get unlimited checks, full bulk validation, and CSV export forever. Built for: • Cold outreach & lead generation specialists. • Sales & marketing teams protecting domain deliverability. • Recruiters sourcing candidates on LinkedIn and across the web. Stop sending emails into the void. Install MailSift today and keep your bounce rate at 0%.