Peter J. Holzer <[EMAIL PROTECTED]> wrote: > On 2003-12-21 10:52:22 -0500, Keith C. Ivey wrote:
> > and it's leading to larger mail queues everywhere. > > Noticeable? Sure it may take a few seconds to verify the email > address that way, but other common tests (esp. DNS lookups) also > take a lot of time. Maybe there's something different about the Verizon checking, but I know it's been complained about on the NANOG list. I can't find it right now because the NANOG archives seem to still be evolving toward functionality, as they have been for some weeks now (some sort of redesign going on). > What I'm more concerned about is that this is will probably help > only for a short time: Then the spammers will switch to using > existent addresses. True. Significant complications probably aren't worth implementing if spammers have a easy way around the additional checks. I also wonder how many servers actually allow such verification of addresses. Are we seeing a move back toward rejecting mail at RCPT because of all the bounces from joe jobs with random FROM addresses? > > And what happens if the SMTP server you're trying to connect > > to wants to do the same thing? > > Nothing. Because of the MAIL FROM: <>, the other party can't do > the reverse check. Yes, sorry. I missed the <>. -- Keith C. Ivey <[EMAIL PROTECTED]> Washington, DC
