shell:$ nslookup -timeout=2 -retry=1 'trck2.tsel.mailtarget.id'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
trck2.tsel.mailtarget.id	canonical name = d1xei6i96votwk.cloudfront.net.
Name:	d1xei6i96votwk.cloudfront.net
Address: 3.170.51.117
Name:	d1xei6i96votwk.cloudfront.net
Address: 3.170.51.97
Name:	d1xei6i96votwk.cloudfront.net
Address: 3.170.51.77
Name:	d1xei6i96votwk.cloudfront.net
Address: 3.170.51.26
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:8a00:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:2800:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:de00:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:8600:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:4a00:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:ec00:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:da00:12:9485:1900:93a1
Name:	d1xei6i96votwk.cloudfront.net
Address: 2600:9000:21d4:aa00:12:9485:1900:93a1