Tony Finch wrote: >On Fri, 28 Jul 2006, Chris Blaise wrote: [MSN happily ignoring RFC timeouts] >> And/or is there a built-in way deal with this situation? > >The only way is to ensure that your machine is meaty enough to scan email >quickly. In particular you should ensure that SpamAssassin is tuned for >speed, such as having a local DNS cache for RBL lookups. >
I can confirm this MSN behavior, one recipient here was at the end of some 8.8MB mail which must have been a specifically crafted mime/mail bomb. It took SA 160s (98s w/o Bayes) to handle it, while usually mails in this size range take less than 5 seconds (including all DNS/DCC/Razor checks). Note the 98s up there, which means that they're not even waiting 2 minutes. And while this is clearly an isolated incident here (no trace of anything similar in the logs for the last weeks and our content scanner machines really DO breathe fire ;) it shows what happens when big players think they can go and make up rules as they go. Regards, Christian Balzer -- Christian Balzer Network/Systems Engineer NOC [EMAIL PROTECTED] Global OnLine Japan/Fusion Network Services http://www.gol.com/ -- ## 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/
