Re: [exim] fascistic RCPT TO validation

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.