In Outlook, you can add Contacts in the Address book. Saving contacts in the address book helps users to organize information about people.

One way to make sure your favorite newsletter doesn’t end up in your secondary inboxes is to add the sender to your contacts. Here’s how you can make this happen in Gmail, Outlook, and Apple Mail.

To add members to the group, click Add Members in the Members group and then choose the right source, Outlook Contacts, Address Book, or a new email contact (Figure A).