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IBM® Domino 10.0.1 Documentation
Welcome to the IBM® Domino 10.0.1 Administrator Help.
Configuring
Use this information to configure an IBM® Domino® network, users, servers (including Web servers), directory services, security, messaging, widgets and live text, and server clusters. Also use this information to set up IBM iNotes® on a server using Domino Off-Line Services (DOLS).
Configuring directory services
This section describes how to plan, set up, and use IBM® Domino® directory services.
Directory catalogs
A directory catalog is an optional directory database that typically contains information aggregated from multiple Domino® directories. Clients and servers can use a directory catalog to look up mail addresses and other information about the people, groups, mail-in databases, and resources throughout an organization, regardless of the number of Domino domains and Domino Directories the organization uses.
Directory catalogs and Notes® mail encryption
When Notes® users send encrypted mail to users registered in secondary Domino® Directories, servers can use an extended directory catalog to look up the public keys of the recipients to encrypt the mail. Even off-line Notes users with condensed directory catalogs can flag mail for encryption; then when they reconnect to the network to send the mail, the clients look up the public keys in the extended directory catalog.

Directory catalogs and Notes mail encryption

When Notes® users send encrypted mail to users registered in secondary Domino® Directories, servers can use an extended directory catalog to look up the public keys of the recipients to encrypt the mail. Even off-line Notes users with condensed directory catalogs can flag mail for encryption; then when they reconnect to the network to send the mail, the clients look up the public keys in the extended directory catalog.

About this task

Storing public keys in a condensed directory catalog is not recommended because it greatly increases its size. Instead, set up directory assistance for the aggregated Domino Directories so servers can look up the public keys in them.

Servers do not have to trust a directory catalog or a Domino Directory for credentials to use the directory to look up public keys for mail encryption.