Opinions expressed by Entrepreneur contributors are their own. By 2025, more than 4.5 billion people worldwide will have at least one email address. Email is a profitable marketing channel because it ...

How to create and manage multiple contact lists on your iPhone Your email has been sent The Contacts app on your iPhone helps you keep track of friends, colleagues, contractors and other people you ...

Building a contact list is a key step companies must take before they can launch email marketing campaigns that help them reach and connect with their target audience and convert prospects into ...

When apps ask for access to your address book and you consent, the data-sharing doesn’t always stop there. The names and contact information that used to stay safe in analog address books now float ...

I was looking for an alternative to Microsoft’s Outlook app, which is built into Windows. I started using Proton products about a year ago with the free versions of its apps. By signing up, you get ...