Jason Meers wrote:
Hi all,
I hope this isn't bad form posting these links on the list, but I think
some of you may genuinely find this useful.
It poses some interesting questions about joe-job bounce messages and
their potential misuse to evade _some_ types of spam filters.
The article is here:
http://www.theregister.co.uk/2006/03/30/joe_job_twist/
This history of the joe-job can be found here:
http://en.wikipedia.org/wiki/Joe-job
Thanks
Jason Meers
That only works for mis-configured MTAs. A properly configured MTA would reject
a message destined for a non-existent recipient. It would not accept it and then
generate a bounce message.
If the mail admins. of these "respectable companies" actually knew what they
were doing, their company's name wouldn't be at risk. Rather than disabling
bounce messages they ought to install a working MTA, or employ someone who knows
how to.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : [EMAIL PROTECTED]
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555
--
## List details at http://www.exim.org/mailman/listinfo/exim-users
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://www.exim.org/eximwiki/
