Am 10.09.2015 um 10:59 schrieb Axb:
On 09/10/2015 10:47 AM, Reindl Harald wrote:
has anybody ever seen legit mail from domains there?

Yes, sadly ENOM is a huge cesspool but it also has a ton of legit
registered domains on thse NS.

i am not sure about that, looks like "name-services.com" is the DNS for "registrar-servers.com" and there is maybe a distinction between legit and spam domains

Tech Name: NAMECHEAP.COM NAMECHEAP.COM
Tech Organization: NAMECHEAP, INC
Tech Street: 11400 W. OLYMPIC BLVD. SUITE 200
Tech City: LOS ANGELES
Tech State/Province: CA
Tech Postal Code: 90064
Tech Country: US
Tech Phone: +1.6613102107
Tech Phone Ext:
Tech Fax: +1.6613102107
Tech Fax Ext:
Tech Email: supp...@namecheap.com
Name Server: DNS1.NAME-SERVICES.COM
Name Server: DNS2.NAME-SERVICES.COM
Name Server: DNS3.NAME-SERVICES.COM
Name Server: DNS4.NAME-SERVICES.COM
Name Server: DNS5.NAME-SERVICES.COM

for me it looks  like only spammers register every day a new domain
with that whois from
Panama to bypass sender/uri-blacklists

yep.. very much so

http://www.dailychanges.com/registrar-servers.com/


Sep 10 09:53:10 panel: spamfilter: Sender-Backlist
"heute*-*abend*-*date*.*info" added
Sep 10 09:55:31 panel: spamfilter: Sender-Backlist
"facegook*-*nachrichtenzentrale*.*com" added

i am really tempted to add the nameservers to
check_sender_ns_access hash:/etc/postfix/blacklist_ns.cf

I wouldn't unless you can afford to deal with the FPs

i give it a try with a safety net before

smtpd_recipient_restrictions =
 reject_unlisted_recipient
 reject_unauth_destination
 reject_non_fqdn_recipient
 reject_non_fqdn_sender
 check_recipient_access proxy:hash:/etc/postfix/whitelist_rcpt.cf
 reject_non_fqdn_helo_hostname
 reject_invalid_helo_hostname
 check_helo_access proxy:pcre:/etc/postfix/blacklist_helo_unconditional.cf
 check_recipient_access proxy:hash:/etc/postfix/blacklist_rcpt.cf
 check_sender_access proxy:hash:/etc/postfix/whitelist_sender.cf
 check_sender_access proxy:hash:/etc/postfix/blacklist_sender.cf
 permit_dnswl_client dnswl-aggregate.example.com=127.0.0.[2;3]
 check_sender_access proxy:hash:/etc/postfix/spoofing_protection.cf
 permit_dnswl_client dnswl-aggregate.example.com=127.0.0.4
 check_sender_access proxy:pcre:/etc/postfix/blacklist_sender_regex.cf
 reject_unknown_sender_domain
 check_recipient_access proxy:hash:/etc/postfix/skip_spf_check.cf
 permit_dnswl_client dnswl-aggregate.example.com=127.0.0.5
 permit_dnswl_client wl.mailspike.net=127.0.0.[19;20]
 permit_dnswl_client list.dnswl.org=127.0.[0..255].[2;3]
 check_sender_ns_access proxy:hash:/etc/postfix/blacklist_ns.cf
 check_policy_service unix:private/spf-policy
__________________________________________________

cat /etc/postfix/blacklist_ns.cf:

ns1.sedoparking.com         REJECT Domain is parked at sedo.com
ns2.sedoparking.com         REJECT Domain is parked at sedo.com

ns1.fastpark.net            REJECT Domain is parked at namedrive.com
ns2.fastpark.net            REJECT Domain is parked at namedrive.com

a.ns.ultsearch.com          REJECT Domain is parked at a.ns.ultsearch.com
b.ns.ultsearch.com          REJECT Domain is parked at b.ns.ultsearch.com

buy.internettraffic.com REJECT Domain is parked at buy.internettraffic.com sell.internettraffic.com REJECT Domain is parked at sell.internettraffic.com

dns1.registrar-servers.com REJECT Sender-Domain is registered at WhoisGuard Panama / Namecheap Inc dns2.registrar-servers.com REJECT Sender-Domain is registered at WhoisGuard Panama / Namecheap Inc dns3.registrar-servers.com REJECT Sender-Domain is registered at WhoisGuard Panama / Namecheap Inc dns4.registrar-servers.com REJECT Sender-Domain is registered at WhoisGuard Panama / Namecheap Inc dns5.registrar-servers.com REJECT Sender-Domain is registered at WhoisGuard Panama / Namecheap Inc

______________________________________

Tech Name:WhoisGuard Protected
Tech Organization:WhoisGuard, Inc.
Tech Street: P.O. Box 0823-03411
Tech City:Panama
Tech State/Province:Panama
Tech Postal Code:00000
Tech Country:PA
Tech Phone:+507.8365503
Tech Phone Ext:
Tech Fax: +51.17057182
Tech Fax Ext:
Tech Email:1f6d4281c79c4f1599b2806c8e628ce2.prot...@whoisguard.com
Name Server:DNS1.REGISTRAR-SERVERS.COM
Name Server:DNS2.REGISTRAR-SERVERS.COM
Name Server:DNS3.REGISTRAR-SERVERS.COM
Name Server:DNS4.REGISTRAR-SERVERS.COM
Name Server:DNS5.REGISTRAR-SERVERS.COM

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