Re: [exim-dev] RCPT TO verification

On 1/7/10 9:01 AM, Jeremy Harris wrote:
> On 01/07/2010 01:50 PM, Paul Sheer wrote:
>
>> Are there any blogs, caveates, discussions about this kind of behaviour in
>> general?
>>
> Some people think that sender-verifies are evil. Google.
>
as far as i know, most major ISPs who tried callouts found them
unworkable and stopped using them.

Verizon in the US was a prominent example. tried, stuck with it for a
while, eventually gave up.

richard