This is a npm package that checks if email is valid or not and also raises a flag if an email ID is temporary, belongs to a private org or that mail server is not used much.

Provides a fast, pretty robust e-mail validator. Only checks form, not function.

Format validation for Ajv v7+

Validate identifier/keywords name

Validate plugin/preset options

Another JSON Schema Validator

Validators for Vuelidate

Additional JSON-Schema keywords for Ajv JSON validator

Provides a fast company / work email validator by checking whether the email domain is in the free email provider list.

Validates emails based on regex, common typos, disposable email blacklists, DNS records and SMTP server response.

validate form asynchronous

TypeScript definitions for convict-format-with-validator

A library that helps query AMP Validator rules

Validate XML, Parse XML, Build XML without C/C++ based libraries

Decorator-based property validation for classes.

The fastest JS validator library for NodeJS

JSON-Schema compatible validator for web3

String validation and sanitization

Verify email address checking MX records, and SMTP connection.

Another JSON Schema Validator