[Mimedefang] Recent burst of greylist activity

[Lucas Albers]

Sounds like a new spam virus is out.
Sobig+h or similar.
The question is heuristically how can you defend against this?
Greylisting should definitally make a difference in the amount of spam you
get, assuming a signifigantly long enough reject period.(In this
instance.)

> Wow...
>
> My greylist detector went crazy...  I'm seeing hits from different
> machines all over the world; looking at the faked e-mail addresses, these
> attempts *must* be correlated.
>
> It looks like a spammer has managed to take over a whole army of machines
> to do the dirty work.
>