Hi,

I want to know the differnce between the standard and the Enterprise version of exchange 2013.

is UM supported by standard version ?

Thx 

The only significant difference between the Standard and Enterprise products is the number of mailbox databases each edition allows. The Standard edition allows up to 5 mailbox databases, while the Enterprise edition allows up to 50. Thus, you should request the Enterprise edition if your charity or organization is fairly large.

Other product functionality depends on whether you request Enterprise client access licenses (CALs) in addition to Standard CALs. Both Standard and Enterprise CALs can be used with either server edition, but the Enterprise CALs can be used only in conjunction with Standard CALs to access certain Exchange Server features. For more information, see the Licensing section below.

Both editions of Exchange Server 2013 require 64-bit (x64) hardware (Intel EM64T or AMD64), which makes more efficient use of memory and storage than 32-bit hardware.

http://www.techsoup.org/support/articles-and-how-tos/guide-to-exchange-server-editions-and-licensing

• Proposed as answer by sbitechnologies 19 hours 52 minutes ago

The only significant difference between the Standard and Enterprise products is the number of mailbox databases each edition allows. The Standard edition allows up to 5 mailbox databases, while the Enterprise edition allows up to 50. Thus, you should request the Enterprise edition if your charity or organization is fairly large.

Just a small correction...
Exchange 2013 RTM CU2 Enterprise Edition, you can have 100 Mounted databases.

Hi,

There is an official topic about two server editions in Exchange 2013: Standard Edition and Enterprise Edition:

Exchange 2013: Editions and Versions

http://technet.microsoft.com/en-us/library/bb232170(v=exchg.150).aspx

Exchange Server 2013 licensing

http://office.microsoft.com/en-001/exchange/microsoft-exchange-server-licensing-licensing-overview-FX103746915.aspx

hope it helps.

Thanks,

Winnie