Amazon WorkMail vs iMail Server comparison

Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications. Amazon WorkMail gives users the ability to seamlessly access their email, contacts, and calendars using the client application of their choice, including Microsoft Outlook, native iOS and Android email applications, any client application supporting the IMAP protocol, or directly through a web browser. You can integrate Amazon WorkMail with your existing corporate directory, use email journaling to meet compliance requirements, and control both the keys that encrypt your data and the location in which your data is stored. You can also set up interoperability with Microsoft Exchange Server, and programmatically manage users, groups, and resources using the Amazon WorkMail SDK.

iMail Server is a complete email messaging solution designed for small to mid-sized businesses and is backed by the industry’s best technical support team.
iMail Server is a complete Windows email server with SMTP, POP, IMAP, LDAP, and List Server. iMail users can send and receive email using any standards-based client, including Microsoft Outlook® and Outlook Express®. Or, users can access email via iMail’s customizable Web messaging.
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