At 13:19 15/12/06 -0500, Josh Grosse wrote:
>On Fri, Dec 15, 2006 at 06:14:19PM +0100, Lou Hevly wrote:
<snip>
> > ...Such
> > connections will *not* be stuttered at... (Emphasis mine)
>
><snip>
>
> > ...It's up and running and logs connections in /var/log/spamd. But
> it
> > stutters.
> >
> > Why? What am I missing?
>
>The rest of that sentence in the man page.
>
>The -S option sets an *initial* stutter for the first
>character. Why?
>Because real MTAs don't care, but spammers want to push as much
>through as
>quickly as possible, and lots of spambot software recognizes the delay
>as
>a tarpit and will disconnect to go bother someone else.
Thanks. I was reading these docs to mean that spamd would not stutter
unless the -S option were used, in which case it would stutter for 10
seconds by default. I believe this could be made clearer by patching
the docs to say:
********
When run in greylisting mode, spamd will run in the normal mode for any
addresses blacklisted by spamd-setup(8). Connections from addresses
not
blacklisted by spamd-setup(8) will be considered for greylisting. Such
connections will be stuttered at for 10 seconds by default (to change
this,
see the -S option above) and will receive the pleasantly innocuous
temporary failure of:
451 Temporary failure, please try again later.
********
The docs should probably also mention the less than pleasantly
innocuous greeting that precedes rcpt to:
250 You are about to try to deliver spam. Your time will be spent, for
nothing.
I would suggest modifying this as well so as not to be offensive to
legitimate senders:
250 If you are about to try to deliver spam, your time will be wasted.
Again, thanks for the help.
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