Rapportive

Shows you everything about your contacts in your inbox

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@jjeremycai · founder @OnboardIQ early @Shyp

Is Rapportive functional again? Literally one of my most-missed extensions.

@_jacksmith · Serial Entrepreneur & Startup Adviser

Rapportive has been totally destroyed by LinkedIn

@eringriffith · Writer, Fortune

Simple way to guess anyone's email address

@lovethecool · Fashion Photographer

I've been using this forever. I'm always surprised how few people know about it - it's SO useful.