DNS Lookup:

a a ns cname mx ptr txt caa spf dkim dmarc multi

Multi DNS?

No Yes Special

Checking A record for u1.amazonaws.com using Unbound DNS server (127.0.0.1): (or click here to check using the Google DNS website.)
u1.amazonaws.com has address 156.154.64.10

Run domain blocklist check for u1.amazonaws.com.

Did you receive spam from u1.amazonaws.com? Try looking up where to send a spam report using abuse.net. Or check its IP address 156.154.64.10 in 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.

The authoritative DNS servers for this host are: ns-1321.awsdns-37.org, ns-1670.awsdns-16.co.uk, ns-27.awsdns-03.com, ns-967.awsdns-56.net.

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Run at: Sat May 27 17:41:23 CDT 2023