Core roles installed on one virtual server for roughly 200-300 mailboxes using Exchange 2010?

For a customer who is looking at keeping costs down, they are wondering whether setting up a virtualized Exchange 2010 server with all the core roles installed would be possible. So the mailbox, CAS and hub all on one virtual slice.
The customer has around 200-300 mailboxes.
I know that its hard to give a guess for sizing, but I was wondering if a 4 core, 16 GB RAM build on Server 2012 would be sufficient, with the storage obvioulsy being SAN. I know this is dependant upon mailbox size and usage, but I don't have those
numbers unfortunately. Would the 4/16 build be sufficient? Too much?
Any further information around this would be great. Thanks.

Hello,
I recommend you use Exchange 2010 Server Role Requirements Calculator to design your environment.
A blog for your reference.
http://blogs.technet.com/b/exchange/archive/2009/11/09/3408737.aspx
If you have any feedback on our support, please click
here
Cara Chen
TechNet Community Support

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Message was edited by:
Aku_28
Message was edited by:
Aku_28

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