What do people in business use for their mail servers?


 I am looking at implementing a new system.

 I am guessing that people currently use Exchange from
 Microsoft, send mail on unix, tcpip mail on VMS.


 Suggested sites for research?

 I would like to be able to do the following:

 1 Read my email from a web page in a cybercafe anywhere in the world.

 2 Have email so that users can set up forwards and auto reaplys from a web
 browser

 3 Hardware redundancey protection

 4 Read email via a pop client anywhere in the world.


 Probably some other things, but that should do for a start.

 cheers


 antony