Filter discard MTA option

Sieve filter interpretation MTA options:  (1 or 2)
The  MTA  option controls whether Sieve filter " " actions cause such discarded messages to go to the    channel ((i.e., be immediately discarded), or cause such messages to go to the    channel  (which will leave them around for a short period before discarding them). The default is ,  meaning that messages discarded by a Sieve filter are immediately discarded. Setting this option to   causes discarded messages to instead be routed to the   channel.

See also:
 * Sieve filter interpretation MTA options
 * filter_discard channel
 * Bitbucket channel
 * filter_jettison MTA Option