Just how static is that IP address?

[Neil Joseph Schelly]

On Monday 03 July 2006 04:34 pm, Ted Roche wrote:
> Here are my questions: how do the big email services distinguish
> dynamic from static IPs? Is there a great big list somewhere listing
> the 256^4-2 addresses? Is there a way I can determine if the address
> I get is "really" static (if there is such a thing) or should I just
> try to set up a email server and see if I can get through to
> dad at aol.com?

It's important not just to have a static IP that is outside of the dynamic IP 
blacklists, but that you also have the ability to have reverse DNS lookups 
for that IP.  It doesn't usually matter if the reverse DNS lookup matches the 
forward lookup, but that is becoming a more common check too.
-N