Custom rules for spamassasin?

[Les Mikesell]

On Sun, 2005-11-13 at 12:39, Alexander Dalloz wrote:

> > > Perhaps in this case a better solution is that his MTA should be
> > > configured to reject any mail coming in with a HELO name that is not
> > > true (ie, your mailserver external hostname or IP).
> 
> Fully agreed. Better rejecting the forgery at SMTP time than to first
> accept it and then classify it as spam.

Note that there is an RFC that says you MUST NOT reject on a mismatch
between the HELO name and the connecting IP address.  Multi-homed
servers are not expected to adjust their name to match the interface
that happens to be used for each connection and it is common for
servers to live behind a NAT gateway and not even know the public
IP address in use. 

Of course on your own machine you can discard as much mail as you want.

-- 
  Les Mikesell
    lesmikesell at gmail.com