WWW.RTSAK.COM - nullmx.spmc.com

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nullmx.spmc.com checked at 2025-10-21T23:51:55.526Z 342ms 69/69/69 100% R:12

`nullmx.spmc.com`

MX	`spmc-com.mail.protection.outlook.com`
		A	2a01:111:f403:c946:: ^{🇺🇸 Microsoft}
			PTR	`mail-ch5pr02cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f805:: ^{🇺🇸 Microsoft}
			PTR	`mail-mw2pr02cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:f910:: ^{🇺🇸 Microsoft}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:f913:: ^{🇺🇸 Microsoft}
			PTR	`mail-cy1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.11.7^{🇺🇸 Microsoft}
			PTR	`mail-sa9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.42.18^{🇺🇸 Microsoft}
			PTR	`mail-co1pr03cu00302.inbound.protection.outlook.com`
		A	52.101.194.17^{🇺🇸 Microsoft}
			PTR	`mail-ch5pr02cu00401.inbound.protection.outlook.com`
		A	52.101.194.19^{🇺🇸 Microsoft}
			PTR	`mail-ch5pr02cu00303.inbound.protection.outlook.com`
A	192.69.244.101^{🇺🇸 AS55143}

	NS	`ns15.domaincontrol.com`
	NS	`ns16.domaincontrol.com`
	MX	`spmc-com.mail.protection.outlook.com`
	A	192.69.244.101^{🇺🇸 AS55143}

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nullmx.spmc.com resolves to one IP number: 192.69.244.101.

Other host names, for instance spm1.com, spmc.com and gateway.spm1.com share IP numbers with nullmx.spmc.com.

nullmx.spmc.com shares the same mail server setup as other domains, for example spmc.com.

Host spmc-com.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:c946::, 2a01:111:f403:f805::, 2a01:111:f403:f910::, 2a01:111:f403:f913::, 52.101.11.7, 52.101.42.18, 52.101.194.17 and 52.101.194.19.

dbq