Re: [exim] bounced messages

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著者: Peter Bowyer
日付:  
To: exim users
題目: Re: [exim] bounced messages
On 19/11/05, Steve Lamb <grey@???> wrote:
> John Hall wrote:
> > Although be warned that a number of sites are blocking (or at least
> > running SpamAssassin rules that mark down) senders on dynamic IP
> > addresses. If you want to send e-mail directly, you should get an ISP
> > who can give you a static IP in a block that is separate from their
> > DHCP block.
>
>    Even then it doesn't help since some provider *cough, SPRINT, cough*
> insist on not changing reverse DNS on their static blocks or in any way
> identify them as different then their dynamic blocks.  As a result the RBLs
> list both ask dynamic.


That makes sense really, because the intent of such a DNSBL is to list
IPs which are in the 'probably belongs to a home user who might be
more likely to harbour a trojan spambot, and who has an alternative
route for outbound email via their ISP's relays' class. The 'dynamic'
tag is merely a shortcut, and doesn't cover the whole scope.

Peter


--
Peter Bowyer
Email: peter@???
Tel: +44 1296 768003
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