--On 27 March 2008 20:22:52 +0000 Graeme Fowler <graeme@???> wrote:
> On Thu, 2008-03-27 at 12:27 -0700, Marc Perkel wrote:
>> I'm seeing something interesting. In the HELO acl if I issue a DENY I'm
>> seeing servers doing a retry of the HELO. Is this normal?
>
> Yes, perfectly. It's termed a "woodpecker". There are multiple records
> of badly written mail applications hammering away for days until the
> message times out.
>
> Better to reject after RCPT or DATA for some applications, as they then
> go away permanently.
>
> Graeme
Apart from anything else, you should allow people to send email to
postmaster, so that if they've got a bad HELO argument then at least they
can get your advice on it.
--
Ian Eiloart
IT Services, University of Sussex
x3148
