Arctera Unified Platform item properties for use in custom classification policies

Last published : Jun 07, 2026
When Arctera Unified Platform indexes an item, it populates the item's metadata properties with information about the item. Some examples of this information include the display name and email address of the message author, the archived date, and the file size of the item.
Indexed items can have a large number of properties, but only a subset is relevant for classification purposes. Arctera Unified Platform passes this subset of properties and their associated values to the Arctera Classification for use in classification. When you create a custom Arctera Classification policy you can enter the names of these properties in the custom date, custom number, or custom string fields, when you define the policy conditions.
Table: Item properties passed to the Arctera Classification lists the item properties that Arctera Unified Platform passes to the Arctera Classification.
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Table: Item properties passed to the Arctera Classification

Property Type Description
adat Date The date on which the item was archived.
audn String The display names of the author and, if applicable, of the person on whose behalf the item was sent.
auea String The email addresses of the author and, if applicable, of the person on whose behalf the item was sent.
date Date The created, sent, received, or archived date.
natc Number The number of attachments.
nrcp Number The number of recipients (the total of the To, CC, and BCC recipients)
rbdn String The display names of the BCC recipients.
rbea String The email addresses of the BCC recipients.
rcdn String The display names of the CC recipients.
rcea String The email addresses of the CC recipients.
rtdn String The display names of the To recipients.
rtea String The email addresses of the To recipients.
size Number The size of the item in KB.
subj String The subject or title.
Table: Attachment properties passed to the Arctera Classification lists the properties of message attachments that Arctera Unified Platform passes to the Arctera Classification.

Table: Attachment properties passed to the Arctera Classification

Property Type Description
a_dat Date The created, sent, received, or archived date of the attachment.
a_dtyp String The data type of the attachment. For example, DOCX, XSLX, or MSG.
a_size Number The size of the attachment in KB.
a_subj String The file name of the attachment or, if it is a message, the subject.
Note: The classification feature treats attachments as files. So if an attachment is an email message, its sender information and recipient information are not available for classification.
For more information on creating custom classification policies, refer to Arctera Classification online help.