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Free Online Email Verification Tool
Check email format, domain, MX records, disposable & role-based detection. Bulk verify up to 500 emails at once — free, no signup required.
Find the people & companies you need → Lessie AI
Type a single email address, paste up to 500 emails in bulk mode, or upload a CSV/TXT file. Use our email permutator to generate possible addresses from a name and domain.
Our system validates email format against RFC 5322 standards, performs real-time DNS and MX record lookups, detects disposable emails from 500+ providers, identifies role-based addresses, and calculates an email deliverability score from 0 to 100.
Get a clear Valid / Risky / Invalid status with a deliverability score based on 5 weighted factors: format (+20), domain (+20), MX records (+30), not disposable (+20), not role-based (+10).
We perform real-time DNS lookups to verify that the email domain exists and has valid MX (Mail Exchange) records configured for receiving email. We display all MX records with their priority levels — results are always up-to-date using live DNS queries.
Detect temporary and throwaway email addresses from over 500 known disposable email providers including Mailinator, Guerrilla Mail, TempMail, YOPmail, and more. Protect your signup forms and mailing lists from fake addresses.
Identify role-based email addresses like info@, admin@, support@, sales@, and noreply@ that are tied to functions rather than individuals. These typically have lower engagement rates for marketing campaigns.
Verified a valid email? Take it further with Lessie AI People Search. Discover who's behind the email — find professional profiles, social accounts, and contact information powered by AI.
Detect fake Instagram followers instantly. Our free tool analyzes engagement rate, follower quality, and credibility score to identify bot accounts. No signup required.
Check any Instagram account's real-time follower count and profile statistics. See followers, following, posts, engagement rate, and more. Free, no signup.
Calculate any Instagram account's engagement rate instantly. Get average likes, views, and interaction metrics for free. No signup required.
Audit any Instagram account instantly. Get engagement rate, average likes, comments, follower count, and full profile stats. Free, no signup required.
Estimate Instagram influencer pricing per sponsored post. Analyze engagement rate, audience quality, and follower count to get accurate rate estimates. Free, no signup.
Discover Instagram influencers by country and niche. Filter creators by industry, location, and engagement metrics. Free Instagram creator discovery tool — no signup required.
Compare any two Instagram influencers side by side — engagement rate, followers, average likes, comments, and audience demographics. Free, no signup.
Detect fake TikTok followers instantly. Our free tool analyzes engagement rate, follower quality, and credibility score to identify bot accounts. No signup required.
Check any TikTok account's real-time follower count and profile statistics. See followers, following, likes, videos, engagement rate, and more. Free, no signup.
Calculate any TikTok account's engagement rate instantly. Get average likes, views, and interaction metrics for free. No signup required.
Audit any TikTok account instantly. Get engagement rate, average likes, views, follower count, and full profile stats. Free, no signup required.
Discover TikTok influencers by country and niche. Filter creators by industry, location, and engagement metrics. Free TikTok creator discovery tool — no signup required.
Compare any two TikTok influencers side by side — engagement rate, followers, average likes, plays, shares, and audience demographics. Free, no signup.
Check any YouTube channel's real-time subscriber count and channel statistics. See subscribers, total views, videos, engagement rate, and more. Free, no signup.
Detect fake YouTube subscribers instantly. Our free tool analyzes engagement rate, subscriber quality, and credibility score to identify bot accounts. No signup required.
Calculate any YouTube channel's engagement rate instantly. Get average likes, views, and subscriber metrics for free. No signup required.
Audit any YouTube channel instantly. Get engagement rate, average views, likes, subscriber count, and full channel stats. Free, no signup required.
Discover YouTube influencers by country and niche. Filter creators by industry, location, and engagement metrics. Free YouTube creator discovery tool — no signup required.
Compare any two YouTube influencers side by side — engagement rate, subscribers, average likes, views, and audience demographics. Free, no signup.
Search Twitter/X accounts by uploading a similar image or describing an avatar. Our AI-powered tool instantly finds matching Twitter profiles by profile picture similarity. Search 10M+ profiles. Free to use.
Check any Twitter/X account's real-time follower count and profile statistics. See followers, following, tweets, engagement rate, and more. Free, no signup.
Calculate any Twitter/X account's engagement rate instantly. Get average likes, views, retweets, and interaction metrics for free. No signup required.
Audit any Twitter/X account instantly. Get engagement rate, average likes, retweets, follower count, and full profile stats. Free, no signup required.
Discover Twitter/X influencers by country and niche. Filter creators by industry, location, and engagement metrics. Free Twitter creator discovery tool — no signup required.
Compare any two Twitter/X influencers side by side — engagement rate, followers, average favorites, retweets, and audience demographics. Free, no signup.
Generate personalized B2B cold emails with AI — subject line and body in seconds.
Verify email addresses for free. Check email format, domain, MX records, disposable & role-based emails. Bulk verify up to 500 emails. No signup required.
Generate possible email addresses from a name and domain. Free email permutator creates 20+ variations to help you find the right email. No signup required.
Lessie AI Supercharge your email campaigns. Craft, send, and track high-performing emails effortlessly—boost your outreach and turn leads to loyal customers.
Find targeted email addresses lists by industry and role. AI-powered email database builds custom contact lists for marketing, sales and recruiting. Start free.
Automate personalized email outreach with AI. Lessie's cold email tool writes, sends, and tracks tailored messages so you can book more meetings and close more deals.
Look up any company profile instantly. Get industry, employees, revenue, funding, location, social links, and more. Free, no signup.
Find all office locations for any company worldwide. Discover headquarters, branch offices, warehouses, and R&D centers from multiple data sources. Free, no signup.
Find small businesses near you — open now, hiring, for sale, woman-owned, veteran-owned. Free local business search tool with distance filters.
Generate instant B2B company intelligence snapshots — revenue, funding, tech stack, employees, growth signals. Free company research tool, no signup required.
Find companies like your best customers instantly. AI-powered lookalike company search for B2B prospecting. Free tool to expand your target account list.
Generate professional AI headshots for free. No sign up required. Perfect for LinkedIn, resumes, and business profiles. Try our free AI headshot generator now.
Calculate CPM (Cost Per Mille), total ad spend, or impressions instantly. Free CPM calculator for digital advertising campaigns. No signup required.
Discover what technology any website uses. Free tech stack checker reveals CMS, frameworks, analytics & 1,200+ technologies.
Calculate TAM, SAM & SOM with bottom-up and top-down methods. Free market size calculator for startups & consultants.
Score B2B accounts against your ideal customer profile. Free ICP scoring rubric with instant fit grades and tier classification.
Extract LinkedIn profiles instantly. Free online tool to export names, emails, job titles, and company data. No login required.
Generate winning sales deck outlines instantly with our free AI tool. Create B2B sales decks, investor pitches, and startup presentations in seconds.
Free AI-powered competitor comparison tool. Analyze competitors' SEO, pricing, social media & market position. Get instant competitive insights with Lessie AI.
Score your resume instantly with our free ATS checker. Get detailed feedback on keywords, formatting, and ATS compatibility. No login required.
Free AI-powered CV builder. Create ATS-friendly resumes with smart suggestions, professional templates, and instant PDF download. No signup required.
Email lists naturally decay at 22–30% per year as people change jobs and abandon addresses. High bounce rates damage your sender reputation with providers like Gmail and Outlook. Pair verification with a solid email marketing strategy to maximize campaign ROI.
Validate email addresses at the point of signup to prevent fake registrations, reduce fraud, and ensure you collect real contact information. Block disposable emails and catch typos before they become invalid accounts.
Verify prospect email addresses before cold email outreach to improve response rates and avoid wasting time on invalid contacts. Use our B2B lead generation tools to find qualified prospects, then verify their emails before reaching out.
Detect disposable email addresses commonly used for fraud, abuse, and fake account creation. Verify that email domains are legitimate and have proper mail infrastructure configured, adding an extra layer of trust verification.
