Re: OT: How much traffic does your ISP filter by TCP port no.?
- From: "Paul Hovnanian P.E." <paulh@xxxxxxxxxx>
- Date: Thu, 29 Nov 2007 10:19:25 -0800
Didi wrote:
A few days ago my ISP blocked my outgoing TCP connections to
port 25 - except to their mailserver. After a few calls they agreed to
let me also access my domains mailserver (turned out they just
allowed it globally to all their customers...).
I sometimes use my domains mailserver or my ISP's, but at times,
e.g. when I want to have the delivery session to the final recipient
mailserver
logged, I let my SMTP client go all the way directly.
They claim they did it to fight spam - which is plausible, but breaks
their claim to deliver "unlimited access" in pieces.
And since no spam comes out of here, I do not like what they did.
Not something I would go to war for, but I will not ignore this
lightly
either.
Any observations from other parts of the world? (I am located in
Sofia, Bulgaria).
You have to look at this from your ISP's point of view. Spammers install
trojans on unprotected systems and these send out huge volumes of junk
using port 25. Since most people haven't got a clue about how this stuff
works or how to block it, the ISPs take responsibility to protect their
systems.
If you can convince them that you know what you are doing and can
configure and protect your system correctly and, they enable outbound
port 25 traffic, great. Having an ISP enable such traffic for selected
domains/IP addresses is extra work which you shouldn't expect them to do
for everybody. Or your rates would have to go up.
--
Paul Hovnanian paul@xxxxxxxxxxxxx
-----------------------------------------------------------------------
Procrastinators: The leaders for tomorrow.
.
- Follow-Ups:
- Prev by Date: Re: File compatibility issues with LAN drive
- Next by Date: Re: EARN $ 100 PER DAY WITHOUT INVESTMENT IN YOUR SPARE TIME USING INTERNET.
- Previous by thread: Re: OT: How much traffic does your ISP filter by TCP port no.?
- Next by thread: Re: OT: How much traffic does your ISP filter by TCP port no.?
- Index(es):
Relevant Pages
|
Loading
