Verify emails in real-time. Bulk email checker, MX DNS lookup, disposable domain detection & bounce rate reduction for outreach.
Users
9
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#208K
#174K among extensions
Version
1.2.0
updated 5 Oct 2026
Users
monthly, 6 months
Latest, 21 Oct 2026:9 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 21 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About MailSift — Email Verifier & Bulk Checker
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%.