Qpsmtpd:noop counter
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NAME
noop_counter - disconnect after too many consecutive NOOPs, example plugin for the hook_noop()
DESCRIPTION
The noop_counter counts the number of consecutive NOOP commands given by a client and disconnects after a given number.
Any other command than a NOOP resets the counter.
One argument may be given: the number of NOOPs after which the client will be disconnected.
NOTE
This plugin should be loaded early to be able to reset the counter on any other command.