someone is using my email address to spam, is there a way to stop this ?

[Robert Brockway]

On Sat, 9 Aug 2008, James Knott wrote:

[Discussion of blocking SMTP]

> What would a home router block on?  Is this spam sent by their ISP's SMTP

Destination ports tcp/25 and tcp/587.  It occured to me the little routers 
could default to blocking and allow people to open the access if they 
want.  Not sure I'm totally happy with this though, from a philosophical 
POV.

> server or another?  Many ISPs block port 25 from off their network.  I often

I'm not sure how wide spread the practice is right now.  Rogers certainly 
does it.

An alternative would be for them to transparent proxy the SMTP ports so 
that any attempt to reach an outside MTA would have to go through their 
MTAs.  I expect the reason they don't do this is that it would add a lot 
of load.

RBLs help to block spam from end-user systems too.

Cheers,

Rob

-- 
"With sufficient thrust, pigs fly just fine..."
 	-- RFC 1925 "The Twelve Networking Truths"
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