Fedora 8 mailserver: receiving ALMOST no mail from this list

[Bruno Wolff III]

On Sun, Jun 28, 2009 at 17:39:59 -0500,
  Linus Ulrick <meow8282 at gmail.com> wrote:
> 
> Slightly off of the thoughts stated above, but I have a free DNS
> account with dnsexit.com.  So in rare situations where my IP address
> does change I just change my IP address at dnsexit.com and everything
> is back to normal.

Just remember the DNS records have TTLs associated for them and it may
take a while (on the order of a day) for cached records to expire.
Even for planned changes where you can lower the TTLs, some ISPs don't
honor the TTLs and will cache them for on the order of a day anyway.