> > I use this:
> > drop message = HELO doesn't look like a hostname
> > log_message = Not a hostname
> > condition = ${if match{$sender_helo_name} \
> > {\N^[^.].*\.[^.]+$\N} \
> > {no}{yes} \
> > }
> >
> > This means: Drop the HELO unless it contains a . somewhere in the HELO
> > string, but may not begin or end with a . (imposed minimum length is 3
> > chars). basically x.x is ok, but .x. is not
>
> Note that:
> - at least some Windows machines seem not to send a fqdn in their
> HELO string (despite being told both their host and domain names.)
I don't cater to windows machines.
> - "IP literal" will not have '.'s in if you're accepting IPv6
> connections - you need to check for either '.'s or ':'s.
I don't accept IP literal HELOs either.
But that's just me =)
> So you actually want something like:
>
> condition = ${if match{$sender_helo_name} \
> {\N^[^.:].*[.:][^.:]+$\N} \
> {no}{yes} \
> }
>
> --
> Russell King (rmk@???) The developer of ARM Linux
> http://www.arm.linux.org.uk/personal/aboutme.html
>
--
Lab tests show that use of micro$oft causes cancer in lab animals
