From: Brendan Grossman (brendangrossman.id.au)
Date: Wed Mar 01 2006 - 06:58:46 CST

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> > > Don't put an SMTP server on a dynamic IP address - you'll only
> > > create a headache for yourself. If you've enough boxes to be
> > > worrying about such things get a static IP address, it
> will be less
> > > work than trying to work around it.
> >
> >
> >
> > I'll add to that - If your ISP won't provide one then
> change ISP. In
> > my experience ISPs that insist on dynamic IP only don't
> want servers
> > on their systems and won't provide proper support.
>
> That is correct. Speaking from the standpoint of an ISP, we
> provide static IPs to those that request them for doing
> things like this. Still, other than how to avoid being an
> open relay, we do not offer much support (as in, how they
> should configure their (mail|web|other) server. We also
> don't offer a lot of sympathy to the ones who become open
> relays or get themselves blacklisted because they wanted to
> send spam and found our SMTP servers not-very-conducive to that.

Unfortunately, the difference between a static and dynamic IP for me here in
Australia, is a loss of 7mbps off my connection, or, an extra $80+ per
month. I have ADSL2+ (cable's unavailable) and the only static IP plans I've
found are "business" plans, and they're usually over $100 per month.

Sure, having a static IP makes things easier, but I have a script that
checks my IP every hour and if it's changed, updates it. So there's probably
not a huge difference, just a static IP would give me peace of mind and
would ensure unless the connection were to go down, mail would never bounce.

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