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Microsoft Office 365's basic cloud email service includes storage and sharing of up to 1TB per user and 50GB inbox space for email messages, calendars and contact lists. "The ability to add accounts in a mixed environment is nice too, I use Exchange for my own email while giving my son a standard email account on my domain for an extra $2 (13rmb/month) since he doesn't need the advanced features." -msteinhilber Office 365: $60 (375rmb) per user and up* The layout of their UI makes sense and has a very quick learning curve." -WPAdmin Lighting up new accounts is quick and easy to do.
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The documentation (though cluttered with older versions) is thorough and easy to follow. The simple things like autodiscover in Outlook work quickly, and the mailbox sizes have become pretty generous for this price point.
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"Tasks like renaming, migrations, resynchronizing, and application upgrades are apparently really tough for them. Here are some additional points from Spiceworks user reviews to consider: Rackspace can do attachments up to 50MB and all clients receive 250MB of SharePoint storage for each email account registered. There's a 14-day free trial to start with, and new users get tutorials to help with the transition, plus direct support from Rackspace staffers to get familiar with the service. Note that this add-on will have to apply to all mailboxes in your company domain, so you can't pick and choose which users get it. This feature does an auto backup for every piece of email whether incoming or outgoing, allowing you to immediately locate any email from past or present. There's also an option to add "Email Archiving" for an additional 36 dollars (that's 239rmb) per mailbox, per year. This premium option runs at 120 dollars a year per mailbox, or 795rmb.
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Mailboxes use Microsoft Outlook, though only Rackspace's Hosted Exchange has the full range of compatibility and synchronization across desktop, web, and mobile devices, plus sharing and connecting users through public folders, calendars, contacts, and task lists.
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It's suitable for businesses: up to 100GB email mailboxes (Hosted Exchange) and up to 25GB (Rackspace Mail end users). Rackspace is one of the more popular Gmail alternatives - the English-language service has a generally good reputation for being reliable, effective and well-priced for the features offered.
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