Open Relay Checker before Opening MTA
grail at goldweb.com.au
Sun Feb 10 10:19:36 EST 2002
On Sunday, February 10, 2002, at 09:27 , Ben Elliston wrote:
> I realise that Neil's idea would prevent his system from *accepting*
> mail from open relays. Another approach I have heard about is to only
> accept mail for a domain (say, domain.com) from domain.com's listed MX
> hosts. I don't know which MTAs implement this, though--anyone?
The only catch I can see with this is that a listed MX may only be for
incoming mail, with outgoing mail sent by other machines.
> If all you're trying to do is stop reading spam (as opposed to not
> receiving it), then you should check out SpamAssassin.
Anyone who is a victim of Telstra wants to stop receiving spam. By the
time it's in our mailboxes, we've already paid for it. If the ORBS
lookup and OR test cost less than actually receiving the spam, I'd do
that rather than use an after-the-event system such as SpamAssassin.
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