Hunter currently supports four types of bulk functionalities that will help you to find and verify emails:
Bulk Domain Search: find email addresses from a list of domains or company names.
Bulk Email Verification: verify a list of email addresses to see which have the best deliverability scores.
Bulk Email Finder: find email addresses from a list of names + companies and/or domains.
What if I only have a list of professional emails?
If you only have a list of emails, you can import your emails in the Leads section with the Import Functionality. Hunter will enrich them with the data points we can publicly find on the web at no cost to you. You will also be able to export the enriched results in CSV for free too.
Please find out about them in the Leads article.
Need more help? Get support via chat or email (contact@hunter.io).