A valid email address consists of:

• Local part: The text before the @ symbol (max 64 characters)

• @ symbol: Required separator

• Domain part: Server/host name (max 255 characters)

• TLD: Top-level domain (.com, .org, etc.) that must be at least 2 characters

Additionally, certain characters are restricted and each part must follow specific syntax rules.

Our email validator checks for multiple factors:

• Basic format and syntax: Ensures the email follows the required pattern

• Length limits: Validates that each part stays within defined length constraints

• Common typos: Identifies potential typing errors in popular domains (gmail, yahoo, etc.)

• Disposable emails: Flags temporary email addresses that might indicate less reliable users

• Suspicious patterns: Detects unusual character repetitions or unusual patterns

Note that this tool cannot verify if an email inbox actually exists - it only checks the format and identifies potential issues.

Yes, this tool processes all email addresses entirely within your browser. Email addresses and validation results never leave your device and aren't sent to any server. When you close or refresh the page, all data is completely cleared.

Validating email addresses provides several benefits:

• Improved user experience: Catch typos before users submit forms

• Higher delivery rates: Reduce bounced emails by filtering invalid addresses

• Better data quality: Maintain a cleaner database of contacts

• Reduced spam risk: Identify potentially fraudulent or throwaway emails

• Cost savings: Avoid sending emails to invalid addresses when using paid email services

Yes, this validator supports internationalized email addresses. It can validate addresses with non-Latin characters in the domain part (IDN domains) such as example@россия.рф. The tool follows the relevant standards for international email formats and domain name validation.