Re: Current status?

In article <6iv84fFma4eU1@xxxxxxxxxxxxxxxxxx>, billg999@xxxxxxxxxxx (Bill Gunshannon) writes:
In article <gad5rp$25e$1@xxxxxxxxxxxxxxxxxx>,
Johnny Billquist <bqt@xxxxxxxxxxxx> writes:
Bill Gunshannon skrev:
In article <hPXxk.13$ia.10@xxxxxxxxxxxxxxxxxxxx>,
John Santos <john@xxxxxxx> writes:
Bill Gunshannon wrote:
I'm on Verizon FIOS at home and I know the FIOS converter box
is a router and does NAT and some level of filtering, so inbound
port 25 traffic wouldn't make it to my LAN (or single computer
if that was all I had) unless I actively reconfigure it to pass
port 25 to a designated host (the default is "block"), but I
don't know if the same applies to Comcast cable modems. (FIOS
is point-to-point to the central office, like DSL, so local
"LAN" traffic isn't a separate issue like it would be with
Comcast.) In other words, blocking at the upstream router or
at my home would be equally effective with FIOS or DSL, but
for Comcast, only blocking at the home would catch everything.

Inbound port 25 to your machine is not the source of SPAM, outbound
from your machine, which has no business sending email to anyone but
your local MTA for relaying, to the INTERNET in general is. It doesn't
require blocking at the user level, just at the border of the email domain
which is your ISP.

Just thought I'd throw in a torch here, and then I'll be quiet again.

I just totally hate ISPs that block port 25. The less I have to deal with an
ISP, the better my life works. They are *clowns* and I for one am not interested
in letting them handling my mail traffic if I can avoid it.

If you are a residential customer:
1. You probably don't have a clue what ahy of this means.
2. You have no need to run your own mail server.
3. Your AUP (at least for every ISP in the US who's AUP I am familiar
with) prohibits you from running an servers.

You also are probably being provided with a dynamic address by your ISP
and hence if sending mail out directly risk having your mail blocked because
your recipient's mailhub is using one of the many DUL lists
( SORBS DUHL, SpamHaus PBL etc).
To ensure your mail is not blocked by such a list you should be sending
through a mailhub with a fixed IP address - for most people the simplest to
use is the ISP's mailhub. This is irrespective of whether or not the ISP
blocks outbound port 25 connections.
The only time that the ISP blocking outbound port 25 connections is a real
problem is if you want to send mail out through another fixed ip address
mailhub eg your employer's mailhub. Which is where having your employer setup
their mailhub to support authenticated connections on the submission port comes
in.


David Webb
Security team leader
CCSS
Middlesex University



So why would you need access to port 25? If you have commercial network
service, nothing should be blocked, but you should be held to a much higher
standard of maintenance.


Spam is definitely a scurge, but letting the ISPs get monopoly on mail is not
the solution.

It's not giving them a monopoly. Anyone who wants to run servers merely
needs a commercial and not a residential service agreement.


And as others have pointed out, the fact that a whole bunch of ISPs now block
port 25 haven't reduced spam one bit.

Actually, the number who do is insignificant. Most of the major ISP's in
the US do not. And probably don't even know what we are talking about.

Don't kill the messenger when the message
is junk. Find the originator instead. That's where your problem is, and that is
where you need to apply the fix. Otherwise the spammer will just continue,
finding new ways of spreading their junk.

I can virtually eliminate SPAM. All I need is to get people to expend
what will turn out to be considerably less effort nt the long run than
what thye are epending now on the problem.


Jail them. Confiscate their money and their business. That would stop spam. Not
much else will.

That comes back to my statement that we need a social solution and not a
technological solution. Under the way the INTERNET is currently run, this
can not be done. Under my plan, it most certainly could.


People who think that blocking ports is a solution to the spam problem are just
plain ignorant.

Blocking port 25 is just a bandaid, but the only one we have available
right now. It would have an immediate effect, if it were truly universal.
But the solution needs to be social and that solution exists today and
could easily be improved upon once people actually looked at the problem
and the solution with un-biased eyes.


Thank you for your time. I now let you go back to your spamming. :-)

Always good to hear from you.

bill

--
Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves
billg999@xxxxxxxxxxxxxxx | and a sheep voting on what's for dinner.
University of Scranton |
Scranton, Pennsylvania | #include <std.disclaimer.h>
.

Relevant Pages

  • Re: Current status?
    ... I'm on Verizon FIOS at home and I know the FIOS converter box ... port 25 traffic wouldn't make it to my LAN (or single computer ... ISP, ... Spam is definitely a scurge, but letting the ISPs get monopoly on mail is not ...
    (comp.os.vms)
  • Re: Current status?
    ... They could *also* firewall port 25 at their boundaries with other ... I'm on Verizon FIOS at home and I know the FIOS converter box ... the legitimate ISP inbound mail server. ... SPAMing by other customers of the same ISP going through its ...
    (comp.os.vms)
  • Re: Current status?
    ... You would still need to know who your MTA is ... justification for allowing anybody to use port 25. ... to the problem of how to get the email system to be more immune to SPAM. ... your ISP should never allow you ...
    (comp.os.vms)
  • Re: SMTP Server for outgoing only behind a home router
    ... They cliam to ONLY block port 80 to keep me from ... you will get a 220 greeting line from the remote SMTP server: ... So AOL.COM methods stops legitimate roaming users from using ESMTP AUTH to ... So look to see of your ISP supports ESMTP AUTH for dynamic IP users and/or ...
    (microsoft.public.inetserver.iis.smtp_nntp)
  • Re: Current status?
    ... spam will not stop because you start blocking port 25. ... I still won't use the idiots running the ISP for my mail. ...
    (comp.os.vms)