Thanks for the heads up. I will check my Rspamd setup as I forget which
DNSBLs it uses
Keith
On Sun, 31 Jan 2021 at 11:14, Martijn Grooten <martijn@???>
wrote:
> Hi all,
>
> If you are running your own email server and you are using SpamCop
> (spamcop[.]net) somewhere in your spam filtering set-up, this is
> important.
>
> The service has had its DNS registration lapse and now points to a
> domain parking service. More importantly, any lookup against the
> SpamCop blocklist will return a positive response, which spam filters
> take to mean the domain is listed.
>
> While it would not be difficult for a DNSBL client to distinguish
> between these responses and proper DNSBL responses (which usually are
> in 127.0.0.0/8), but in practice most don't.
>
> So if you are using SpamCop, it is strongly advised you remove it from
> your DNSBL client until the domain starts working again.
>
> Martijn
>
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