Karl Schmidt wrote: > I removed a dead RBL from our system. Now I am getting a lot more spam. > I think the spam bots give up if they don't get a fast response - is there a > better way to > put a delay back in the system? Or is this just a coincidence and there is a > jump in spam > traffic today?
I've noticed on my server that some delay stops tons of attempts I've had at sending mail to non-existant users (without beeing logged in the rejection log which is why I did this). You could place a 5-10 second delay on connect, a 5-10 second delay on EHLO/HELO (be sure that the combined isn't over 15 seconds), put a 30-60 second delay on MAIL if the sender is not <> (this is where the spambots I've noticed drop the connection). If you want, you can also put another 30-60 second delay on the FIRST RCPT command if the sender is not <> (but not the rest) and 30-60 second delay at DATA time. The reason for the lower delay at connect and HELO time is so that callouts will work to you. Exim's default timeout is 30 seconds. -- Lab tests show that use of micro$oft causes cancer in lab animals Got Gas??? -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
