xnnd.com tools for dns
DNS Lookup: Multi DNS?

Checking PTR record for using Cloudflare DNS server ( (or click here to check using the Google DNS website.) domain name pointer imta-po.sys.comcast.net.

Sender Score for IP is n/a.
Scan reverse DNS for
Query ARIN for

Spamtrap grade: A
Did you receive spam from imta-po.sys.comcast.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.

Run at: Thu Apr 15 23:00:16 EDT 2021

 xnnd simple tools for dns since 2008