#1 Bulk Email Verification API for Batch and Fast Results

Each bulk email validation API call verifies that:

• The syntax is correct

  We check all email addresses on a list against established IETF standards with an advanced engine for email validation according to syntax.

• Addresses do not come from a free email service provider

  Email addresses issued by free email service providers are unlikely to be linked to corporate accounts and business leads.

• Addresses are not disposable

  Temporary email addresses are supplied by email service providers like Mailinator, GuerrillaMail, or 2,000+ others. They are created for short-term purposes in mind and can be fraudulent.

• There is a corresponding mail server

  Branded email addresses are typically accompanied by a valid domain that has its DNS MX records properly configured.

• There is a corresponding mailbox

  An email address without a mailbox cannot receive messages and so likely does not add value to your email list or might be suspicious.

• The address is not a catch-all

  Catch-all addresses aren’t always actively used by individuals and so may have questionable value on an email list.