Email ???

[Ed Greshko]

Les Mikesell wrote:

> The point here is that it is up to the sender to retry.  If you tempfail
> the first attempt you have no control over how long it will be until the
> next attempt happens.  If the sender has a big queue, it could be 4
> hours or more.

That *could* happen.  In practice, I've not seen it.  In any event, it would
happen only once for a given sending MTA.  If that is the price I have to
pay for reducing incoming SPAM by over 80% it is well worth it.  In a short
period of time all of those MTA's will long delays will be cached.

I bet those people that fret over this also have their user agents set to
poll for new mail every minute.

> At the very least you should permit a sending host once it is known to
> retry.  Some schemes match up senders/recipients - which is appropriate
> for the first connection, but once you know a host is going to retry you
> might as well let it through.

That is what the cache does....without any human intervention.

-- 
Don't be overly suspicious where it's not warranted.