On 08/11/2011 10:56 AM, m.roth@xxxxxxxxx wrote:
> Craig White wrote:
>> On Aug 11, 2011, at 4:51 AM, mark wrote:
>>> Always Learning wrote:
>>>> On Wed, 2011-08-10 at 21:36 -0500, John R. Dennison wrote:
> <snip>
>>> You don't seem to understand the issue. My hosting provider has
>>> literally hundreds of thousands of domains. The email gets funneled for
>>> all, I assume, except those paying for co-location, through their
>>> heavy-duty mailhost. manitu sees spam coming from that mailhost, and
>>> blocks EVERY EMAIL FROM EVERY DOMAIN that goes through it, even though
>>> none of the rest of us are running windows or spamming....
>> ----
>> Not sure who it is that doesn't understand the issues.
>>
>> If an RBL has designated a particular SMTP server or range of SMTP servers
>> as a source for spam then the solution lies with those that own the SMTP
>> servers to satisfy the RBL and get the blocks removed.
>>
>> Yes, some RBL's are more aggressive than others but the notion that it
>> blocks EVERY EMAIL FROM EVERY DOMAIN is exactly what RBL's are supposed to
>> do since they don't worry at all about which e-mail or which domain at
>> all... only SMTP servers from a particular IP Address or a range of IP
>> Addresses.
>
> And that's *EXACTLY* what I'm saying is the wrong thing to do. Dunno where
> you live, but go ahead, for whoever provides 'Net access to your home:
> call them up, or email them, and tell them to contact manitu, and to
> request that manitu put them on a whitelist.
>
> Let me know when they get back to you. I'll look for your email sometime
> around the time when you move and change providers.
In fact, that is one of the single most effective mechanisms used to
combat spam, in my experience and will cut down the amount accepted at
the gateway(s) by up to 95%.
(I know a lot of folks on this list will maintain their own mail server
and might get a few hundred or thousand messages each day going through
but I've run systems with up to billions of messages a day which is a
completely different ball game.)
--
Josh Miller
Open Source Solutions Architect
http://itsecureadmin.com/
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