KILLED USER TIMEOUT

TCP/IP-channel-specific options: KILLED_USER_TIMEOUT (integer seconds)
The SMTP server option  may be used to specify an  the timeout value, in seconds, for entries made in the internal killed user hash table associated with the   command. The default is 600 seconds.

Note that the timeout value affects storage of all user entries, however, the setting is especially relevant when the  switch is used.

See also:
 * TCPIP-channel-specific options