Re: Jetico firewall

Sebastian Gottschalk wrote:
Taylor, Grant wrote:

Ah. I see the mis-communications. I was referring to servers that send
a status code AFTER the completion of the DATA command. I.e. return a
4xy or 5xy status code to the DATA command's data.

Still undesirable. :-)

Why? It would be nice to reject earlier. But if you are going to make
decisions based on what is in DATA it is far better to do that during
the SMTP session than to accept and then generate your own DSN.

I've seen some ISPs that also filter 587 in addition to 25. Their ToS
specifically state that you are to send email, what ever method, out
through their servers. However they also have other higher packages
that do not do this filtering.

At one point I had an ISP with a simple, but sensible policy. All you
had to do was request for outbound 25 to be opened for you and they
would honour the request. The idea was that if you knew enough to ask,
you were OK and could take responsibility for spam from your machines.
Everyone else was presumed incapable of taking that responsibility.

Hopefully this is documented in their terms of services, [...]

I can't remember the details of the ISP described above. It was buried
deep in the ToS. You would only find it if you were looking for
information about outbound stuff being blocked.

I think I get your point of "notifying someone is often pointless". Am
I any where close?

Yes. Just add China, certain Eastern Europe countries and Russia, and
then you get a clue of the full impact.

The US remains the biggest source of spam.

-j


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