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Attributes for Exchange 5.5 Mailboxes : Extension-Attributes

In this attribute you can store all kind of information. Storage data type is Unicode String. There are fifteen different Extension-Attributes which do not hold any data by default.

Extension-Attribute-1. . . Extension-Attribute-15

LDAP name Extension-Attribute-1. . . Extension-Attribute-15
Data type Unicode String (max 1024)
Multivalue (Array) No
Heuristic 20 => Replicated between sites, No operational attribute
Access category

Admin Access Only

Ex55 Database name Extension-Attribute-1. . . Extension-Attribute-15

With the Extension-Attributes, other applications can store some additional data for the mailboxes without having to update the schema of the exchange 5.5 directory. The Exchange 5.5 Admin tool shows only the first ten of the fifteen attributes.