Global address list not updating on client
An undefined parameter value is replaced with the empty value.The expressions "$" and "$" are replaced with "value" when "$name" is non-empty.
The table is maintained by the verify(8) service, and is opened before the process releases privileges.This feature is available in Postfix 2.1 and later.The time after which a failed probe expires from the address verification cache.The general format of the file is as follows: The expressions "$name" and "$" are recursively replaced with the value of the named parameter.The parameter name must contain only characters from the set [a-z A-Z0-9_].The expression "$" is replaced with "value1" when "$name" is non-empty, and with "value2" when "$name" is empty.
The "" is required for "value1", optional for "value2".
This feature requires that the database supports the "delete" and "sequence" operators.
Specify a zero interval to disable database cleanup.
After each database cleanup run, the verify(8) daemon logs the number of entries that were retained and dropped.
A cleanup run is logged as "partial" when the daemon terminates early after "postfix reload", "postfix stop", or no requests for $max_idle seconds.
This feature is available in Postfix 2.6 and later.