If you’ve got more than one email address bumping mail into your Inbox, you might want to activate the recipient column. This column gives you an easy way to identify which of your addresses an email was sent to.

How’s it possible to have more than one email address? A few ways.

One: a free feature of your account is an extra email address, in case you want to try a new name or use something different for a different group of people. And let’s not forget checking mail from external accounts. That’s free, too! And do you know what else is free? Receiving email that you’ve set to forward from another account to your Yahoo! Mail address.

On the subscriber side – that is, for those paying the beautifully affordable annual rate for Yahoo! Mail Plus – disposable addresses give you new addresses you invent on the spot when you want email (say, a purchase confirmation) but don’t want to give out your main email address.

The recipient column helps you keep track of it all – so you can say, for example, “oh right, that’s why I’m getting email from this Florence person (and thank you, Florence!)”