Stopping open proxies and open relays

Mon Feb 9 13:51:42 UTC 2004

Gregh wrote:
> 
> Optus in Australia have taken the line of blocking port 25 to anything at
> all excepting contact with their own servers. Seems to work. Some pissed off
> customers with their own smtp progs etc but my guess is that this would fit
> your bill.
> 
Earthlink and many others have been doing this in the US for a long time. 

But, they don't require any "authorization" in sending, despite that 
being available built-in to NetScape/Mozilla for many years, and they 
don't seem to actually scan their outgoing email for virii and cut off 
the user.

I'm not sure this is the answer.
-- 
William Allen Simpson
    Key fingerprint =  17 40 5E 67 15 6F 31 26  DD 0D B9 9B 6A 15 2C 32