Re: [Exim] Spam blacklist

Tony Finch wrote:

> Glenn Carver <Glenn.Carver@???> wrote:
>
>>I also find:
>>
>> dsn.rfc-ignorant.org/$sender_address_domain
>>
>>very good.
>
>
> Note that callout verification is equivalent to this blacklist :-)

And cached for longer than an Exim process lifetime, unlike a DNSBL lookup.