Tor wrote:
>
>After various SMTP protocol checks and delays, greylisting
^^^^^^^^^^^
[...]
>This suffix should be a hash value that is unique for each message
^^^^^^
I guess you know where I'm heading already. Greylisting _and_
fully unique sender addresses (unlike VERP) per individual
message do not really mix that well.
Unless one uses a greylisting scheme like the one at:
http://users.aber.ac.uk/auj/spam/
which will whitelist sender IPs that have successfully passed the
greylist hurdle, you wind up getting delayed each time at sites
deploying "regular" greylisting...
Regards,
Christian Balzer
--
Christian Balzer Network/Systems Engineer NOC
chibi@??? Global OnLine Japan/Fusion Network Services
http://www.gol.com/