And now Amazon Web Services has done just that. Competing against Google, or more specifically Microsoft, they are now offering a free 30 day preview. After that pricing seems to go for $4 a box.
Amazon WorkMail is a secure, managed business email and calendaring service with support for existing desktop and mobile email clients. Amazon WorkMail gives users the ability to seamlessly access their email, contacts, and calendars using Microsoft Outlook, their web browser, or their native iOS and Android email applications. You can integrate Amazon WorkMail with your existing corporate directory and control both the keys that encrypt your data and the location in which your data is stored.
You can get started for free with a 30-day trial of Amazon WorkMail for up to 25 users.
Who is going to get it?