[oclug]Mail server on dynamic IP DSL line

[David F. Skoll]

On Tue, 12 Nov 2002, Tim Hosking wrote:

> Myself and a friend act as each other's secondary MX. We have not lost
> a message yet :)

There is one very small danger with running a mail server on a dynamic
IP.  If you lose connectivity, and someone else who is *also* running
a mail server picks up your former IP address before you can update
DNS, then mail to you may bounce with a "relaying denied" error.  This
happened to me once or twice in the 15 months I was with Sympatico and
running an MX host on a dynamic IP address.

Regards,

David.