Duplicate maximum timeout MTA option

Duplicate test storage timeout maximum:  (integer)
(New in 8.0.) The   MTA option establishes a maximum value, in seconds, for the  Sieve " " " " parameter that controls how long test information is retained. Values higher than the maximum are silently adjusted down to the maximum; no error occurs. The default value for  is 604800 seconds (7 days).

See also:
 * Sieve duplicate extension
 * Sieve filter duplicate extension MTA options