Re: Bounce/System Notification Address Verification

On Mon, 27 Jun 2005 20:38:13 EDT, Hector Santos said:

> Verizon.Net is a big ISP and they perform a CBV on every incoming
> unauthorized transactions. But it does it immediately at MAIL FROM.  We wait
> until RCPT TO is determined to reduce the overhead CBV need
>
> Check out how Verizon.Net does using its MailPass server.
Please note that using the near-universally reviled Verizon method as
anything other than an example of how *not* to do it:

19:36:18 C: MAIL FROM:<antispam579542(_at_)west(_dot_)verizon(_dot_)net>

Now explain to me why I shouldn't do a CBV on this?

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