Re: [squid-users] Sending mail through port 80

Amos Jeffries wrote:
> Joel Jaeggli wrote:
>> Matus UHLAR - fantomas wrote:
>>> On 04.12.08 07:29, Mike Rambo wrote:
>>>> I guess you could also use a no_cache directive on squid itself to
>>>> prevent caching of traffic to your ISP but IMO the firewall rule is
>>>> what I would probably prefer.
>>> That wouldn't work because squid does not understand SMTP
>>
>> the spammers who abused open http proxies with lax security policy to
>> send smtp via port 25 would beg to differ, but that's sort of a
>> needlessly convoluted workaround. (and now in the past as a spam threat)
>
> Spammers primarily abuse the connect method. And secondarily abuse the
> siilarity between HTTP and SMTP by sending SMTP through port 80 with
> partial HTTP headers to cause proxies to not reject it.
>
> This is one reason why I thoroughly dislike the ISP who uses port 80 for
> actual SMTP. They are encouraging such abusive behavior to be done
> through all proxies everywhere.

lstening on 80 for smtp is just retarded and there's no helping those
people...

:/

> Amos
Received on Wed Dec 10 2008 - 08:38:49 MST