Check the person’s company website
Look at the contact or team page
Search LinkedIn profile details
Use the company’s email format and verify it
Check press releases or author bios
Search public directories and professional listings
Review conference speaker pages
Check social media bios and posts
Use WHOIS records for domain contacts
Search email lookup tools
Guess common formats and test carefully
Ask for the email through a contact form
Use mutual contacts to request an introduction
Check published documents or PDFs
Search by name plus domain in search engines