Email servers

Which could be the best email servers?are there any providers who can help me through selecting the best one?

The two major players are postini or Microsoft Exchange.

What do you need the email server for?

you could be more specific about your requirements as in what you want and what you want it for…there are many such providers in the market…you can try google to find what you’re looking for or may be something like this would help you… mass email server