Definition

Controls whether or not address expansion of the current user or group entry is performed immediately (value is “No”), or deferred (value is “Yes”).

A different attribute (other than mailDeferProcessing) can be designated for this purpose in the MTA option LDAP_REPROCESS.

Deferral takes place if the value is “Yes” and the current source channel isn’t the reprocess channel. Deferral is accomplished by directing the user or group’s address to the reprocess channel. That is, the expansion of the alias is aborted and the original address (user@domain) is queued to the reprocess channel.

If this attribute does not exist, the setting of the deferred processing flag associated with delivery options processing is checked. If it is set, processing is deferred.

If it is not set, the default for users is to process immediately (as if the value of this attribute were “No”).

The default for groups (such as mailing lists) is controlled by the MTA option DEFER_GROUP_PROCESSING, which defaults to 1 (yes).