Static vs. Dynamic IP address and email blocking

Corey Edwards tensai at
Fri Apr 6 09:07:27 MDT 2007

On Fri, 2007-04-06 at 07:44 -0600, Dr. Scott S. Jones wrote:
> Stuart: 
> > On Fri, 2007-04-06 at 07:02 -0600, Dr. Scott S. Jones wrote:
> > > I recently switched from Qwest/Xmission, where I believe I had a Static IP
> > > address for DSL to my office, to Comcast, with dynamic IP address. I am now
> > > running into several problems with sending email.
> > Gone are the days when Linux geeks could run their own servers on a
> > cheap DSL or cable connection. There may be some lucky stragglers, but
> > you'll probably be best off upgrading to a more friendly ISP or an
> > expensive business quality connection, or renting space on a virtual
> > server.
> It's $30 more per month, so I might make the jump to get a static IP, but in
> the mean time, how would I ... (see below)

Yowza! $30 a month for a static IP? That's outrageous. Sounds to me that
you've traded service and support for a few megabits of bandwidth. It's
your choice, but not what I would do.

> > You can continue to send email out, but instead of sending it directly
> > to AOL or MSN, you will have to configure your MTA to relay every
> > message through your ISP's MTA. Because your ISP's MTA has a
> > non-residential IP, AOL and MSN are more willing to trust it.
> ... configure my email Exim4 to route my Outbound email through Comcast's
> MTA? I'd gladly do that if it would mean the email goes out...and reaches
> the recipient. Please advise. 

  driver = manualroute
  transport = remote_smtp
  domains = ! +local_domains
  route_list = *


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