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DNS Lookup: Multi DNS?

Checking A record for u6.amazonaws.com using Unbound DNS server ( (or click here to check using the Google DNS website.)
u6.amazonaws.com has address

Did you receive spam from u6.amazonaws.com? Try looking up where to send a spam report using abuse.net.
Or check its IP address 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: r1.amazonaws.com, r2.amazonaws.com, u1.amazonaws.com, u2.amazonaws.com.

Run at: Wed Jul 6 08:10:50 CDT 2022