CAS 2010 Proxying
Summary of Client Access Methods
The following table summarizes the protocols used to access Exchange 2010 and how they're used for proxying and redirection.
Client Access protocols for redirection and proxying| Protocol | Client Access server to Mailbox server communication supported between Active Directory sites | Redirection supported between Client Access servers | Proxying supported between Client Access servers | Comments |
|---|---|---|---|---|
| Outlook Web App | No | Yes | Yes | Must have a Client Access server in each Active Directory site to use Outlook Web App. |
| Exchange ActiveSync | No | No (unnecessary) | Yes | Must have a Client Access server in each Active Directory site to use Exchange ActiveSync. |
| Exchange Web Services | No | No | Yes | Must have a Client Access server in each Active Directory site to use Exchange Web Services. |
| Availability service (used by Office Outlook 2007) | No | No (unnecessary) | Yes | Must have a Client Access server in each Active Directory site to use the Availability service. |
| Outlook Anywhere (RPC over HTTP) | Yes, with RPC | No | Not applicable | Not applicable |
| WebDAV and Exchange 2000 Server or Exchange 2003 | Yes, over HTTP | No | Not applicable | Not applicable |
| POP3 and IMAP4 | No | No | No | POP3 and IMAP4 clients must access a Client Access server in the same Active Directory site as their mailbox. |
Comments