Need an ISP in TO

[William O'Higgins]

On Wed, Jun 29, 2005 at 10:22:22AM -0400, Zbigniew Koziol wrote:
>James Knott wrote:
>
>>Many ISPs do that [block port 25 outbound except to their own smtp
>>server], in order to prevent spam.
>> 
>>
>This does not prevent incoming spam but ourgoing spam (which should not 
>be the business of an ISP).

I disagree.  If an ISP allows its users to send SPAM then they will be
blacklisted, causing a significant disruption to all their customers.
The ISP must take steps to make sure that the users abide by their terms
of service for the good of all of their customers, and with dynamic-IP
ISPs it is easier to block port 25 than it is to track user's usage and
throttle/monitor/block SPAM-like activity.  If the ISP sells static IPs
then they can have a given user blacklisted without disrupting other
customers, and they can take steps to regain the good name of their IPs
one at a time.
-- 

yours,

William

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