Charles Marcus wrote:
On 10/21/2009, Chris Imrie (chris.im...@abeta.co.uk) wrote:
It checks to verify the sender once, then caches the result in a
database, so mail servers aren't hassled more than once per email
address verification.
Maybe I'm wrong, but I think this could still get you blacklisted...
http://www.circleid.com/posts/sender_address_verification/
I agree. Sender verification has its uses, but it is *not* suitable for
use as an anti-spam tool on inbound email. At least one major webmail
provider is known to blacklist hosts that employ it excessively.
See also http://taint.org/2007/03/16/134743a.html
Mark
