Email Validator
Email Validator helps marketing, sales, and product teams reduce bounce rates by checking whether an email address is correctly formatted and backed by a valid domain configuration. It is useful before campaign sends, CRM imports, trial onboarding flows, and support-list cleanup where bad addresses create delivery problems and reporting noise. This page focuses on practical validation steps: syntax checks, domain and MX verification signals, and quick feedback loops for bulk review workflows. It is important to treat validation as a quality filter, not a perfect deliverability guarantee, because inbox acceptance depends on additional factors like sender reputation and mailbox policy. Use this tool to catch obvious failures early, standardize list hygiene, and prevent avoidable errors from propagating into automations, outreach sequences, and transactional email systems.
What Email Validator Does
Validate email addresses for deliverability, syntax, and domain health. Free email validator with instant results.
Common Use Cases
- Clean lead lists before newsletter or lifecycle campaign sends
- Validate signup emails before creating customer records in your app
- Pre-check CSV imports for CRM and customer support platforms
- Reduce hard bounces in outbound sales and onboarding workflows
- Review domain and MX health signals during QA for email features
How It Works
- Enter one email address or a list for batch validation
- Run checks and review syntax, domain, and MX status signals
- Separate invalid or risky entries from valid contacts
- Export the cleaned list for CRM, campaigns, or onboarding flows
Examples
Valid syntax and domain
Input: aylin@example.com
Output: Valid format, domain resolves, MX records detected
Invalid format
Input: aylin@@example.com
Output: Invalid address format: contains multiple at symbols
FAQ
Does email validation guarantee inbox delivery?
No. Validation improves list quality by filtering clear failures, but final inbox placement still depends on sender reputation, content, and recipient server policy.
What is the difference between syntax and domain validation?
Syntax validation checks address structure, while domain validation checks DNS or MX signals that indicate whether the domain is configured to receive email.
Should I validate emails at signup or later?
Do both when possible: run basic checks during signup for immediate feedback, then run list-level validation before large campaign sends.
Related Pages
Variants
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