FYI, We are seeing this rule be VERY effective with no FPs so far after 36 hours in operation.
And it's a VERY light weight test. Perhaps SMTP command syntax checking could become a built-in option for exim. Brian On Nov 5, 2006, at 10:01 AM, Stanislaw Halik wrote: > An extremely high percentage of spambots sends "MAIL FROM: <>" instead > of "MAIL FROM:<>". This appears to be a great way to distinguish > between > real MTAs and sloppy imitations. To reduce false positives to > negligible, one can enable this check only to non-authenticated > clients. -- ## 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/
