Mail Collector lets you read and send emails from your multiple email accounts in one place. Easy to set up, no more going through various complicated settings for incoming and outgoing servers.
Mail Collector resides in GMX Mail which you need to sign up if you do not have one. It's free.
Once you have a GMX Mail account, log in and click Mail Collector. It shows you four simple steps to go—just select a provider (Yahoo, Gmail, Hotmail or others) from a pull-down menu, enter an email address and password, click "Continue" with the default setup and "Confirm". That's it. And all mails will start flowing in from that account.
GMX Mail is provided by GMX (Global Mail Exchange) as a free webmail service, but unlike other services, it features an ad-free interface (at least currently), plus a Mail Collector Wizard.
Besides, you can compose a mail, choose any account (that you have added in the list) to send out from. You can have an Address Book, Organizer and many other features. Have a good try. You might end up using it daily.
"GMX has been able to see its email customer count surge rapidly during the past years and its FreeMail currently hosts about 11 million active users in Germany, Australia, Switzerland and the UK." —Wikipedia.