IPLIST.NET - mail.boulder.nist.gov

Search for IP or hostnames:

mail.boulder.nist.gov checked at 2025-10-13T14:56:10.404Z 119ms 67/67/67 100% R:16

`mail.boulder.nist.gov`

CNAME	`email.nist.gov`
MX	`email-nist-gov.mail.protection.outlook.com`
		A	2a01:111:f403:f900::1 ^{🇺🇸 Microsoft}
			PTR	`mail-blapr09cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f904:: ^{🇺🇸 Microsoft}
			PTR	`mail-dm6pr09cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f904::1 ^{🇺🇸 Microsoft}
			PTR	`mail-ds0pr09cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f90e::1 ^{🇺🇸 Microsoft}
			PTR	`mail-sa9pr09cu00101.inbound.protection.outlook.com`
		A	52.101.8.50^{🇺🇸 Microsoft}
			PTR	`mail-dm6pr09cu00202.inbound.protection.outlook.com`
		A	52.101.8.52^{🇺🇸 Microsoft}
			PTR	`mail-ds0pr09cu00104.inbound.protection.outlook.com`
		A	52.101.9.19^{🇺🇸 Microsoft}
			PTR	`mail-blapr09cu00103.inbound.protection.outlook.com`
		A	52.101.11.12^{🇺🇸 Microsoft}
			PTR	`mail-sa9pr09cu00104.inbound.protection.outlook.com`
A	129.6.16.94^{🇺🇸 NIST}
		PTR	`postmark.nist.gov`
		PTR	`smtp1.nist.gov`
		PTR	`smtp2.nist.gov`
		PTR	`smtpint.nist.gov`

`boulder.nist.gov`

MX boulder-nist-gov.mail.protection.outlook.com

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AI analysis

mail.boulder.nist.gov points to a single IP: 129.6.16.94.

Other host names, for instance smtpint.nist.gov, postmark.nist.gov and email.nist.gov share IP numbers with mail.boulder.nist.gov.

mail.boulder.nist.gov is served by a single mail server, email-nist-gov.mail.protection.outlook.com.

mail.boulder.nist.gov shares the same mail server setup as other domains, for instance email.nist.gov.

The host name email-nist-gov.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:f900::1, 2a01:111:f403:f904::, 2a01:111:f403:f904::1, 2a01:111:f403:f90e::1, 52.101.8.50, 52.101.8.52, 52.101.9.19 and 52.101.11.12.

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