NSLIST.NET - mail01.questdiagnostics.com

Search for IP or hostnames:

mail01.questdiagnostics.com checked at 2025-10-29T14:20:54.995Z 280ms 22/22/22 100% R:9

`mail01.questdiagnostics.com`

	A	216.203.82.233^{🇺🇸 AS27021}
			PTR	`mail01.questdiagnostics.com`

`questdiagnostics.com`

	NS	`ns11.questdiagnostics.com`
	NS	`ns12.questdiagnostics.com`
	NS	`ns1.questdiagnostics.com`
	NS	`ns3.questdiagnostics.com`
	MX	`cluster4.us.messagelabs.com`
	MX	`cluster4a.us.messagelabs.com`
	A	52.232.227.90^{🇺🇸 Microsoft}

rank #12205 globally
rank #6316 in the tld

PTR for

233.82.203.216.in-addr.arpa

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AI analysis

mail01.questdiagnostics.com points to a single IP number: 216.203.82.233.

dbq