[Mimedefang] Blocking spam senders using IPTables?

[Fernando Gleiser]

On Wed, 3 Nov 2004, Joseph Brennan wrote:

>
>
> Outlook does that too.  You can end up with tens of thousands of
> connections a day trying to send the same couple of messages,
> never mind the 5xx responses.

There are also some broken MTAs which respond to a 4xx as if it were a
5xx and drop the message and send a bounce back.
Lotus Notes is one of such ofenders.


			Fer