Whois vs GDPR, latest news

Wed May 23 07:41:49 UTC 2018

On Tue, 22 May 2018, Jimmy Hess wrote:
> Perhaps it's time that some would consider  new RBLs  and  Blackhole
> feeds  based on.... :
> Domains with deliberately unavailable WHOIS data.

How about the ones with broken contact data - deliberately or not?

A whois blacklist sounds good to me. DNS WBL?

exhibit A:
==========
https://whois.arin.net/rest/net/NET-66-111-32-0-1/pft?s=66.111.56.98

    ----- Transcript of session follows -----
... while talking to aspmx.l.google.com.:
>>> DATA
<<< 550-5.1.1 The email account that you tried to reach does not exist. Please try
<<< 550-5.1.1 double-checking the recipient's email address for typos or
<<< 550-5.1.1 unnecessary spaces. Learn more at
<<< 550 5.1.1  https://support.google.com/mail/?p=NoSuchUser d26-v6si14042755pge.500 - gsmtp
550 5.1.1 <tim at synergyisp.com>... User unknown
<<< 503 5.5.1 RCPT first. d26-v6si14042755pge.500 - gsmtp

exhibit B:
=========
https://apps.db.ripe.net/db-web-ui/#/query?searchtext=79.121.0.5#resultsSection

    ----- Transcript of session follows -----
... while talking to mail.kabelnet.hu.:
>>> DATA
<<< 451 Could not complete sender verify callout <webadmin at kabelnet.hu>... Deferred: 451 Could not complete sender verify callout
<<< 503-All RCPT commands were rejected with this error:
<<< 503-Could not complete sender verify callout
<<< 503 Valid RCPT command must precede DATA
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old

-Dan