Re: [gentoo-user] Re: Postfix Woes

[John Jolet]

On 4/25/06 9:11 PM, "Maurice E Johnson" <maurice.e.johnson@×××××.com> wrote:

> OK,
> Here's how this works.
>
> Many (nearly all)  primary SMTP servers on the Internet will not forward your
> email. The reason for this is because your ip belongs to an ISP (this means
> your IP is a client IP on the ISPs net).
>
> Well, one day, many moons ago a bunch of very intelligent folks got together
> and figured that letting people run their own mailservers was a goot way to
> propagate spam. So they put together a database of (among other things)
> ISP-Customer IPs.
>
> This is where it gets good. You see, now that you are part of the crowd, ALL
> of those SMTP servers on the net will see your server as an email source and
> drop your stuff on the floor. Pretty cool huh?
>
> Remember kiddies - RTFM
>
To be realistic...not ALL of them drop your stuff on the floor.  And I¹m not
personally so sure that it¹s all that intellegent to decide that people with
³residential² or ³dynamic² ips are automatically morons who can¹t control
their perimeter and so should be blocked.  I find, in fact, that most of my
mail (that doesn¹t need to go to aol, or certain other large providers) does
in fact travel quite happily from my properly configured, non-spam friendly
mail server to the destination.  And if it bounces, well, that¹s what the
³transport² file is for :).  And what he¹s seeing is, in fact, NOT a
smackdown because the receiving end doesn¹t like his dynamic ip.  If you
look at the log segment, he¹s not getting connected at the far end, not
getting a 550.  His isp is blocking outbound smtp traffic.  You could make
an argument both ways, but I personally find it appalling that morons who
can¹t control their own computing resources make it difficult for me to send
my legitimate outbound mail as I please.  I¹m not a big fan of ³lowest
common denominator² computing...which is why I don¹t run windows.