One of the following misconfiguration messages appear when an Exchange Server constraint occurs in the capacity model:

Typically, one of these adjustment messages appears when you have modified a capacity model by removing or adding a software role that is required, or when a server role has been added to a server that conflicts with another server role. The table below describes server roles, and how they can and cannot be collocated with other components.

Exchange Server Service Component Constraint Requires Supporting Component

ActiveSync client

Not required

Client Access

Client Access

  • Required

  • Required for ActiveSync, Outlook Web Access, and Outlook Anywhere clients

  • Must be present in every site that contains a Mailbox server

None

Edge Transport

  • Required if e-mail is sent to or received from the Internet

  • Must be connected to the perimeter network.

  • Cannot be collocated with any other component.

There must be a Hub server in the same site.

Hub Transport

  • Required

  • There must be at least one Hub Transport.

  • Cannot connect to a perimeter network.

None

Inbox

Required

Mailbox

Mailbox, Simple (unclustered)

  • At least one mailbox type is required

  • Cannot connect to a perimeter network.

  • Hub Transport, installed on a separate server in the same site

Mailbox, CCR

  • At least one mailbox type is required

  • Cannot connect to a perimeter network.

  • Active and passive nodes cannot be collocated with any other component.

  • Passive CCR, installed on separate server in the same site

  • Hub Transport, installed on a separate server in the same site

Mailbox, LCR

  • At least one mailbox type is required

  • Cannot connect to a perimeter network.

  • Hub Transport, installed on a separate server in the same site

Mailbox, SCC

  • At least one mailbox type is required

  • Cannot connect to a perimeter network.

  • Active and passive nodes cannot be collocated with any other component.

  • Passive SCC, installed on separate server in the same site

  • Hub Transport, installed on a separate server in the same site

Mailbox, SCR

  • At least one mailbox type is required

  • Cannot connect to a perimeter network.

  • Active and passive nodes cannot be collocated with any other component.

  • Passive SCR, installed on separate server in the same site

  • Hub Transport, installed on a separate server in the same site

Outlook Anywhere

Not required

Client Access

Outlook (Cached)

Not required

Mailbox

Outlook (online)

Not required

Mailbox

Outlook Web Access

Not required

Client Access

To make the required adjustments, use one of the following procedures:

See Also

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