| TABLE 1: Support of Optional Exchange Components on Clusters |
| Component |
Status |
| Message Transfer Agent (MTA) |
The MTA can be active in only one virtual server within the cluster. |
| Network News Transfer Protocol (NNTP) |
NNTP isn't supported largely because of the problems associated with reconfiguring news feeds after a cluster transition. |
| Microsoft Mail (MS Mail) connector |
One instance can be active in a cluster. The dependency is on the post office name, which you must manually reconfigure after a failover. |
| IM |
Not supported (available in Exchange 2000 only). |
| Site Replication Services (SRS) |
Not supported. |
| Lotus cc:Mail connector |
One instance can be active in a cluster. The dependency is on the post office name, which you must manually reconfigure after a failover. |
| Lotus Notes connector |
Not supported. |
| Novell GroupWise connector |
Not supported. |
IBM Professional Office System
(PROFS) connector |
Not supported. |
| IBM SNADS connector |
Not supported. |
| Active Directory Connector (ADC) |
Not supported. |
| Key Management Service (KMS) |
Not supported (available in Exchange 2000 only). |
| Chat Service |
Not supported (available in Exchange 2000 only). |
| Exchange Conferencing Server |
Not supported (available in Exchange 2000 only). |