Bulk Validate an Email List

A contact list that was clean a year ago is not clean today. People change jobs, domains expire, and email addresses that once worked now bounce. Sending a campaign to an unvalidated list that has been sitting idle for six months is one of the fastest ways to damage your sender reputation.

The bulk_validate skill takes a list of email addresses and returns a deliverability verdict for each one — valid, invalid, disposable, risky, or a spam trap. The output lets you remove bad addresses before your campaign runs and avoid the cumulative bounce damage that follows.

Email marketers preparing a campaign, sales teams cleaning a prospect database, and operations teams auditing their contact records all use this to restore list quality without individually checking thousands of addresses.