For some months now we have used a HELO ACL to delay by 35 seconds all connections with suspicious looking HELOs. This is very effective at reducing the amount of spam that our servers receive, while not preventing "real" email getting through, because much of the current spamming software seems to drop the connection during the delay period.
As our mail volumes get higher, however, I am beginning to be concerned about the load that all these delayed connections will place on our servers. At the moment it does not appear to be an issue, but I am looking for advice on whether or not it is likely to become a problem. Regards Clive Goodhead -- ------------------------------------------------------------ Cornwall Internet Limited Registered in England, registered number 3387326. Registered office: Montaza, Fore Street, Goldsithney, Penzance, Cornwall, UK. ------------------------------------------------------------ -- ## 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/
