At 10:29 2013-04-29, Ken Dibble <krdibble@stny.rr.com> wrote:

>For those of you who administer email servers that communicate with

>the internet:

I do not, but.

[snip]

>Surely it must be possible for an SMTP server to do sender-verify in

>a different way, such as by querying its own table of valid accounts.

It would be a boon for spammers. They would be able to send

lot of tests to determine which E-mail addresses are valid.

[snip]

Sincerely,

Gene Wirchenko

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