[Greylist-users] machine gun

[Paul Venezia]

On Jan 20, 2006, at 4:08 PM, Barb Dijker wrote:

> We are starting to see more machine gun spammers.  For example,
> yesterday youngexplorerscatalog.net attempted to send a message to a
> single recipient once per second until greylisting allowed the  
> message.

...or take my approach. If > 10 tempfailed messages matching the same  
tuple are seen in 14 minutes, that server is blocked from accessing  
port 25 indefinitely.

Works great, although I have an ipf rule with >30,000 lines at the  
moment.

-Paul