Hi Dave,

> We use sendmail and I've got it configured with rate limit thresholds
> to defend spamd from mail-bomb attacks (externally or internally
> generated ;).
> Reasonable rate limiting has totally cured our SA from overload deaths.
> 
> One other trick to survive forward-loops or reply-ping-pongs, configure
> your system so that if you've SA filtered a given message once, skip
> it if you see it again. (IE if it already has a SA header added by
> your system, don't bother to filter it again).

Would you mind sharing your configuration with us?
I'd be really interested - thanks!
 Andy.

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