Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Hunter - Find all the email addresses related to a domain
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
AnyMailFinder.com - Find anyone's email address
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
EmailMatcher - Find anyone's email address in a matter of seconds, for free