Microsoft Outlook Alternative: Thunderbird

Mozilla Thunderbird is a free, open source e-mail and news client developed by the Mozilla Foundation. It features many new enhancements to help you better manage your unruly inbox, and stay informed. Thunderbird 2 scales to the most sophisticated organizational needs while making it easy to find what you need. And it’s also extremely safe: Mozilla has bolstered Thunderbird’s acclaimed security and privacy measures to ensure that your communications and identity remain safe.