[Gllug] Rejecting mail at backup MX

Xander D Harkness xander at harkness.co.uk
Wed Feb 11 16:20:12 UTC 2004

On Wed, 2004-02-11 at 15:48, Jason Clifford wrote:
> On Wed, 11 Feb 2004, Xander D Harkness wrote:
> > (For those that have not used it: Exim tries to reject the email and
> > sends a test reject to the sender.  Most spammers falsify sender
> > addresses or use non-existant accounts and hence will either fail
> > because the account does not exist or because the poor user who has been
> > abused has a full mailbox.
> > 
> > I use it for earthlink, .ru, .cn hotmail and a few others)
> For those running postfix this kind of callout is available in the 2.0.x 
> (where x > 10) releases and is easy to implement.
Nice to know :-)
> Do note however that this will block legitimate email as well - plenty of 
> people use munged email addresses.
LOL.  I have to say I backed off pretty quickly from using callouts for
all addresses as I saw quite a large number of 4XX messages.

These were more from tech mailing lists than average users.

Kind regards

Gllug mailing list  -  Gllug at gllug.org.uk

More information about the GLLUG mailing list