Webone blocking port 25??

Matthew Hawkins matt at mh.dropbear.id.au
Thu Jul 25 12:50:35 EST 2002

Alex Satrapa (grail at goldweb.com.au) wrote:
> Any ISP worth their salt *should* block port 25 outgoing, and require 
> clients to send mail through the ISP's relay.  Mainly to prevent 
> Microsoft Outlook being used as a viral proliferator.

Creating and distributing viruses is the primary purpose/feature/
function of Microsoft LookOut! - the only way to prevent it doing its
job is not to run it.

"The only way to win is not to play at all"

There's quite a few reasons why forcing mail relay through an ISP is bad
and wrong.  You've later picked up on a few of these so no point
repeating.  Some more you might like to think of are "violation of
internet standard 14" and the fact your internet plan charges would go
up significantly should this kind of behaviour start being enforced by
ISP's.  Think of Telstra forcing their customers to relay mail through
Telstra mail servers, and the infrastructure needed to support and
maintain this.

On a related note, check this:

"So, logically, if she weighs the same as a duck, she's made of wood, and therefore a witch!"
(Monty Python and the Holy Grail)

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