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Value: positive integer (in seconds)
This element defines the amount of time (in seconds) a connection can remain idle before the application will automatically close it. The default value for <BackendIdleTime> is 90 seconds for all verifier types that maintain open connections. A sub-verifier in a Multi verifier can inherit the value of <BackendIdleTime> from its <Multi> parent. Red Condor recommends setting the <BackendIdleTime> to less than the <InterEnumTime>.
Once an enumeration has successfully completed, most connections will become idle, because most verification requests will be handled from the cached email information gathered during the enumeration. If these idle connections are not closed, then when the next enumeration begins, it may choose stale connections resulting in a transient failure of the enumeration.