Heads up for spamhaus.org problems

[Gareth]

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info]On Behalf Of Tim
> Boyer
> Sent: 20 August 2007 22:22
> To: mailscanner at lists.mailscanner.info
> Subject: Re: Heads up for spamhaus.org problems
>
>
> On Sun, 19 Aug 2007 22:02:01 -0400, Richard Potter
> <rpotter at rpcs.net> wrote:
>
> >On Mon, Aug 20, 2007 at 12:34:23AM +0200, Raymond Dijkxhoorn wrote:
> >
> >> >Just doing a routine check here, and I have a few mail servers
> >> >misbehaving. It
> >> >*appears* sendmail dnsbl to zen.spamhaus.org is timing out,
> and causing
> >> >mail
> >> >delivery delays, or none at all.
> >> >
> >> >I'm going to discontinue spamhaus, and see what happens.
> >>
> >> Buy rsync from them. Most likely you fire a lot of lookups on their
> >> servers and they started to ban high volume mailservers some time ago.
> >> We have seen this in a lot of places allready.
> >>
> >> May i ask how much mail are you processing daily?
> >
> >Thanks for the reply Raymond.. I wasn't aware they were doing that. These
> >are low volume servers, less than 2,000 messages per day. Does that count
> >as "high volume" to spamhaus?
> >
> >Richard
>
> "Use of the Spamhaus DNSBLs via DNS queries to our public DNSBL
> mirrors is free
> for low-traffic mail servers serving less than 100 users. Use of
> the Spamhaus
> DNSBLs by commercial or corporate networks, ISPs and ESPs, requires a
> subscription to Spamhaus's Data Feed service."
>
> I'd be shocked if 2,000 messages per day counts as high volume.  That's 20
> emails per person per day.
>

>From my experience when we moved over to MailScanner we did it gradually and
on the 3rd day we were processing about 2000-2500 messages per day. On day 4
the Spamhaus DNSBLs stopped matching and never worked from that point
onwards. So I would not be surprised if others got blocked for 2000 messages
per day.