Email Address Validator
Validate any email address for syntax, domain existence, and mailbox deliverability
Bulk Email Verifier
Upload a CSV of email addresses and get instant verification results with deliverability status
Disposable Email Detector
Check if an email address uses a temporary or disposable email provider like Guerrilla Mail or Temp Mail
Catch-All Domain Detector
Determine if a domain is configured as catch-all, accepting all emails regardless of mailbox existence
Role-Based Email Checker
Identify role-based email addresses (info@, admin@, support@) that hurt deliverability when cold emailing
Email Syntax Checker
Validate email address format against RFC 5322 standards and flag formatting errors
Domain Email Validator
Verify a domain can receive emails by checking MX records, A records, and SMTP connectivity
Free Email Provider Detector
Detect if an email address belongs to a free provider like Gmail, Yahoo, or Outlook vs a business domain
Email Format Checker
Check if an email follows the correct name@domain.tld format and suggest corrections for common errors
Email Typo Fixer
Automatically detect and suggest corrections for common email typos like gmial.com or outlok.com
Mailbox Existence Checker
Verify if a specific mailbox exists on a mail server without sending an actual email
Email Risk Scorer
Score any email address from 0-100 based on risk factors: age, activity, disposable, role-based, and more
Temporary Email Detector
Detect temporary email services that auto-expire, protecting your list from invalid signups
Email Bounce Predictor
Predict the likelihood of an email bouncing before you send based on domain health and mailbox signals
Email Quality Scorer
Get a quality score for any email address combining deliverability, engagement likelihood, and risk factors
Business Email Validator
Verify that an email belongs to a real business domain with active MX records and a corporate website
Personal Email Detector
Identify whether an email address is personal (Gmail, Yahoo) or professional (company domain)
Email Health Checker
Run a comprehensive health check on any email address covering syntax, DNS, blacklist, and deliverability
Email Freshness Checker
Estimate when an email address was last active based on domain signals and public data
Inactive Email Detector
Identify potentially inactive or abandoned email addresses in your list to reduce bounce rates
Automate Your Email Validation & Verification
These free tools are great for quick checks. FirstSales automates your entireemail validation & verification workflow with AI-powered personalization.
FAQ
Frequently Asked Questions
Learn how Firstsales protects your domain, lands emails in inboxes, and turns cold outreach into revenue—everything in one place.
Yes, 100% free. All tools in this category work without signup, email capture, or payment. We provide these free tools to demonstrate expertise and help sales teams succeed.
Our tools check live data and query relevant services in real-time. Results are accurate at the time of checking, but remember that some metrics and statuses can change frequently.
Yes, all tools are free to use for both personal and commercial purposes. Sales teams, agencies, and businesses worldwide use our tools daily.
No account required. Simply navigate to any tool and start using it immediately. For advanced features and team management, consider creating a free FirstSales account.
