Registrars should be blocked if they are irresponsible
Over 80% of emails are already spams. Irresponsible registrars are a significant part of this problem.
Try reporting your spam, especially the name servers registered by the same registrant as the spammed domain. You will find some registrars just go on registering domains for the same spammer, despite weeks of complaints against the registrant from many spam recipients. It's hard not to be cynical, as the registrar is being paid for domains by the spammer.
Here's some of the Registrars responsibilities in their accreditation agreement with ICANN:
"3.7 Business Dealings, Including with Registered Name Holders.
3.7.2 Registrar shall abide by applicable laws and governmental regulations.
22.214.171.124 The Registered Name Holder shall represent that, to the best of the Registered Name Holder's knowledge and belief, neither the registration of the Registered Name nor the manner in which it is directly or indirectly used infringes the legal rights of any third party."
For phished emails and websites, it is obvious that a domain is being used illegally. Even if the whois info reflects an accurate address, the use of the domain is still illegal and should be shut down by the registrar once they are informed of illegal use.
Requiring anti-spammers to prove whois info is inaccurate, when a domain is proven to be involved in spam or worse, is just giving them the run around as well as delaying action until irrelevant 99% of the time.
Most of the significant spam comes from a few major spammers. They register multiple domains every day, but often use the same registrant details for more than one domain at the same registrar. When one domain is reported and closed by a registrar the spammer just uses the next domain or more likely they are spamming with several at a time. Most spammed domains are only active for a few days as if not the registrar, an Internet Service Provider may shut down the site or it is on spam filters.
Here's the ICANN advisory on reporting innacurate whois data:
You can see from this that registrants have 15 days to reply to the registrar concerning inaccurate whois info. The ICANN tracked process for reporting inaccurate whois data allows for up to 30 days.
It's just ridiculous for NIC.AT to ask Spamhaus to prove whois data is innacurate before they will do anything about stopping phishing domains being used for theft etc
I'm not affiliated with Spamhaus, but having manually reported and tracked some of the spam I receive to understand the process better, I can understand how negligent and frustrating some registrars can be.
No wonder there is so much spam.