[clug-talk] Did shaw shut down external ports?

Tue Jun 19 12:01:37 PDT 2007

Im so pissed that shaw is doing this, since when do they have the right to
filter my outbound internet!

i have no smpt access to my personal blog email, im trying to work things
out with the company that hosts me but daaaamn shaw pooped the bed on this!
:(

On 6/18/07, Kevin Anderson <kanderson at digital-adrenaline.com> wrote:
>
> This just isn't that serious of a problem.
>
> You shouldn't be sending corporate email on port 25, so them blocking it
> is irrelevant.  Port 587 (Submission) was designed for this long ago,
> and if you haven't moved to that, you should.
>
> Port 25 should be for the server to receive email for local delivery.
> Port 587 should be used for relaying and similar.  Basically any desktop
> client connection.
>
> This allows, as an example, email to be received on port 25 into a
> Barracuda prior to delivery.  On port 587, connections need to be
> authenticated, and allow sending without wasting time going through the
> barracuda, because it's a valid sender.
>
> What Shaw is doing is right, particularly for residential customers.
> Corporate/Business email should have been set up like this long ago.  If
> it isn't already, then it should be.  I'd rate this about on par with
> mandating a firewall or AV on the windows desktop.
>
> As for blocking a class C, you're part of Shaw's class C.  You've just
> been assigned a very small fraction of it, and therefore the subnet is
> broken down differently for you, locally, even though it's part of the
> same class C.  All the subnet does is change routing, and only for small
> branches at that.
>
> Kev.
>
> -----Original Message-----
> From: sgrover [mailto:sgrover at open2space.com]
> Sent: Thursday, June 14, 2007 6:28 PM
> To: CLUG General
> Subject: Re: [clug-talk] Did shaw shut down external ports?
>
> Soooo...
>
> Connecting your home email client to your business email server is now
> out of the question?  (for sending).
>
> One day, Shaw will actually THINK about what they are doing and realize
> it just ain't gonna work.. :)
>
> I have a SOHO connection, so the moment they pull this for my line is
> the moment I move my business elsewhere.  But even then, I still need to
> relay my outbound mail through Shaw's mail servers - otherwise my server
> is erroneously tagged as a "spamming server" by some of the RBLs (who
> are blocking Shaw's IPs with a class C subnet, even though my IP uses an
> abnormal subnet (.246 I think...)
>
> And the only reason they can be doing this is
> a) To help prevent outgoing spam.  (admirable intent, but...)
> b) control of email services.  Other big ISPs are no longer guaranteeing
>   mail delivery unless the user signs up for a "premium" service.  I
> suspect Shaw is gearing up to do something similar.
>
> My thoughts.
>
> Shawn
>
>
> Kin Wong wrote:
> > Just got a polite email this morning from Shaw indicating that we need
> to change our modems and that there has been a network policy change
> (i.e. if you are using port 25 for outgoing mail and it is not through
> Shaw's server, then you are sol).  Somebody must be thinking it is only
> one port, what's the big deal.  I think the date on the memo for for the
> 15 of next month, not that anyone has notice them playing with port 25
> recently.
> >
> >
> > ----- Original Message -----
> > From: "Kevin Anderson" <kanderson at digital-adrenaline.com>
> > To: clug-talk at clug.ca, nick at customdesigns.ca
> > Sent: Thursday, June 14, 2007 11:07:26 AM (GMT-0700) America/Denver
> > Subject: Re: [clug-talk] Did shaw shut down external ports?
> >
> > Outbound works too, if you set up SHAW as a smarthost.
> >
> > Kev.
> >
> >
> > -----Original Message-----
> > From: Nick Wiltshire [mailto:nick at customdesigns.ca]
> > Sent: Tuesday, June 12, 2007 12:08 PM
> > To: clug-talk at clug.ca
> > Subject: Re: [clug-talk] Did shaw shut down external ports?
> >
> > I think it's only outbound. When I moved last month I was unable to
> > send mail until my static IP was set up.
> >
> > On Tuesday 12 June 2007 11:55, Jesse Kline wrote:
> >> Seeing as I got both these e-mails, they havn't cut port 25 yet.
> >>
> >> Jesse
> >>
> >>> I know for sure they are working on cutting port 25 for residential
> >>> customers.
> >>> It doesn't affect SOHO users though.
> >>>
> >>> On Tuesday 12 June 2007 11:50, Robert Campbell wrote:
> >>>> I have had to re-subscribe to this list using my gmail account so
> >>>> that I could ask this question..... Has shaw shut down access to
> >>>> internal ports (or is it just me?).
> >>>>
> >>>> I haven't rebooted my firewall (yet), but email is bouncing and I
> >>>> can't ssh into my server from an external host.
> >>>>
> >>>> So, is it just me, or is everybody experiencing this process?
> >>>>
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