Openwave InterMail and Post.Office
Do you want to serve millions of e-mail customers? If you do, Openwave has the mail server for you. The company's InterMail 5.0 carrier-level server can handle millions of customers. Just ask customers like @Home and Excite.
InterMail shares all the same characteristics of the other top mail servers: remote server control, centralised configuration, and so on. Its other excellent features, such as its distributed nature and dynamic load-balancing, can't be equaled on other systems ... but it requires lots of configuration know-how.
Unlike IMS, InterMail supports a wide variety of operating systems like AIX, Compaq's Tru64 Unix (formerly Digital Unix), HP-UX, NT and Solaris.
Where InterMail steps out from its competition is with its extras. For example, you can provision users' e-mail clients remotely and the system comes with its own set of billing tools. In short, InterMail doesn't just give your customers great mail service with all the trimmings, it gives you what you need to deploy a complete business mail solution.
The one exception to that is small businesses. InterMail is overkill for anyone with less than a thousand users. For small-to-midsize businesses, Openwave offers Post.Office 3.5.
