shell:$ nslookup -timeout=2 -retry=1 'eu-prod-bulk.secb2b.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
eu-prod-bulk.secb2b.com	canonical name = d19tvvpg56437g.cloudfront.net.
Name:	d19tvvpg56437g.cloudfront.net
Address: 3.168.37.2
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:2600:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:b000:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:a800:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:aa00:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:b200:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:c400:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:2200:14:a488:cf07:d461
Name:	d19tvvpg56437g.cloudfront.net
Address: 2600:9000:27fb:1800:14:a488:cf07:d461