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Re: Networking -- use of two Internet connections for one server with round robin DNS -- web okay, but should I do mail this way too?

On Tue 12 Jul 2011 at 00:36:54 -0500, Stan Hoeppner wrote:

> On 7/11/2011 2:22 PM, Andrew McGlashan wrote:
> > But, the blocking of xDSL mail servers that are properly set up just
> > because they aren't going through an ISP is a horrible abuse of the
> > Internet.
> They're not properly setup if they have a dynamic IP address, and most
> xDSL customers get a dynamic IP.  Given that 95% of all email is spam,

What is improper (technically incorrect) in the setup when sending email
from a dynamic IP address?

> and 90% of that is from bot infected PCs on consumer xDSL/cable lines,
> would you have the world stop summarily blocking the hundreds of
> millions of dynamic IP hosts simply to let the few thousand Linux weenie
> servers on dynamic IPs send mail without being molested?  Are you kidding?

As an argument A is B implies B is A can be fraught. But we're in the spam
fighting arena so logic may not be a prime consideration.

> If any of you 'combatants' in this thread had every run a non trivial
> sized mail operation, you'd change your tune on this subject in very
> short order, after trying to deal effectively with a few hundred
> thousand connections/day from bots attempting push spam into your users'
> mailboxen.

The contention is that mail from residential (whatever that means)
static and dynamic IPs must be eliminated. The users probably get the
same choice in the implementation of this policy as they do in choosing
whether to be sent spam.

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