MailboxValidator Single Validation API is programmed to authenticate one email at a time. The API’s results return in JSON or XML formats. This fully-supported API version provides documentation along with its operational parameters and codes. It is accessible through an API key assignable upon signing up for a single plan or several plans among a range of six plans offered by the provider. The provider of the API is a leading vendor of wide ranging products for filtering and verifying email addresses.
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