Maybe I don't understand your post but this seems reasonable to me now
that most receiving mail servers on the Internet will flag mail coming
directly from IPs in the dynamic Shaw IP address block as spam.
From about 2000 through 2004 or so, my outgoing email travelled like this:
Workstation -> Linux Server under desk -> Receiving SMTP server.
Around 2004, I noticed that many "receiving" SMTP servers were flagging
my mail as spam since my Linux server was in the Shaw dynamic IP range.
So I added the following line to my /etc/mail/sendmail.mc file:
define(`SMART_HOST',`shawmail.cg.shawcable.net')
Now my outgoing mail travels like so:
Workstation -> Linux server -> shawmail.cg.shawcable.net -> Receiving
SMTP server.
All my mail is getting through now as the receiving SMTP server seems to
recognize the shawmail server as an authorized SMTP host for that IP
block. The mail takes a couple more minutes to arrive as Shaw's server
isn't too quick, but at least the Spam blocks at the receiving end
aren't eating my messages.
On the other hand, maybe I misread your message and Shaw is planning to
firewall off incoming connections to port 25 on its client's systems?
That would be unfortunate...
Guy
Gustin Johnson wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Shaw will be redirecting all outbound connections on port 25 to their
> own mail servers. For the moment there is a small test zone downtown
> (that happens to include 2 of my clients and my apartment) that has had
> this change implemented.
>
> I think this is a bad idea (and so do my clients who were unable to send
> email ). If you also think that this is a bad idea you should probably
> let them know.
>
> The support staff were unaware of this change, so you may wish to have
> them look at Ticket# 11799439.
>
> I may be eating my words in the near future and ordering up a Telus DSL
> connection.
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