With Norbert, you can find someone's email address by simply typing in their first name, last name and the domain name where you think they work.
There are dozens of ways to find someone's email address, but they all have drawbacks. For example, sometimes Rapportive doesn't work because someone's current business email address isn't connected to their LinkedIn or Twitter profile.
Norbert offers a simple interface, and you don't need to install a plugin to use it. The second you search for someone and turn up an address, Norbert checks the mail host to confirm that the address exists. Norbert is also compatible with Gmail addresses, but I'd suggest pairing it with Rapportive to confirm an identity before reaching out.
Despite its strengths, Norbert also has its own drawbacks. Although Norbert tests and pings mail hosts, it doesn't yet check for catch-all addresses. Some domains will return false positives. Also, Norbert limits users' queries because the creators fear some SMTP servers may block the service if Norbert pings them too frequently. These quotas are reset every day.
If you're not performing dozens of searches daily, Norbert helps you quickly discover email addresses. Check it out at the link below.