xnnd tools for dns Wombatmail DNSBL Resource Spam Resource
DNS Lookup: Multi DNS?

Checking PTR record for using Unbound DNS server ( (or click here to check using the Google DNS website.) domain name pointer pdns1.ultradns.net.

Run IP blocklist (DNSBL) check for
Sender Score for IP is n/a.
Lookup in Microsoft SNDS.
Scan reverse DNS for
Query ARIN for

Did you receive spam from pdns1.ultradns.net?
Try looking up where to send a spam report using abuse.net
Or check ARIN and look for an abuse contact.

Multi DNS Options: No/off=Check one random public server. Yes=Check public DNS servers. Special=Check DNS servers authoritative for zone/domain.

* For the SNDS link to work, you must already have access for that IP address in Microsoft's SNDS portal.

Run at: Sat May 27 18:17:51 CDT 2023