AW: [Full-Disclosure] Windows Messenger Popup Spam on UDP Port 10 26

[Gabe Arnold]

I run off of RCN and they have recently blocked all outgoing port 25 traffic unless someone buys a static IP for another 
$20 a month.  Although I agree that blocking 25 outgoing is nice, I pay for internet access, not for access only through 
certain ports.  Due to the nature of my setup, I was getting a static IP anyways, but I think the $20 bucks is a lot.  In 
the end the decision was deal with port 80 and 25 blocks or pay 20 a month.   I pay the 20, but I think I'm getting nailed 
in the ass.

--Gabe


* Nils Ketelsen (nils.ketelsen at kuehne-nagel.com) wrote:
> At 11:16 23.06.2003 +0200, vogt at hansenet.com wrote:
> 
> >> A professional ISP does not block any port. Blocking ports
> >> can only be done on the customer side. The ISP does not know
> >> which port i might need.
> >
> >This isn't about you. The ISP also has a responsibility to protect
> >the internet at large. If millions of spam are sent each day because
> >the average user is too stupid to close off his proxy, then the
> >ISP can either shut him down, or block the proxy port. Obviously,
> >shutting down isn't an option for business reasons.
> 
> In this case I would request all ISPs to block port 25. Millions of spams 
> are sent via this port each day.
> 
> Nils 
> 
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