WWW.ROBTEX.COM - postoffice.harvard.net

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postoffice.harvard.net checked at 2025-10-03T01:13:48.490Z 434ms 70/70/70 100% R:18

`postoffice.harvard.net`

CNAME	`mailhost.concentric.com`
MX	`mx1c28.concentric.com`
		A	66.226.70.78^{🇨🇦 Hostopia, a HostPapa, Inc. company [USA]}
			PTR	`mx1c28.carrierzone.com`
MX	`mx2c28.concentric.com`
		A	66.226.70.79^{🇨🇦 Hostopia, a HostPapa, Inc. company [USA]}
			PTR	`mx2c28.carrierzone.com`
MX	`mx3c28.concentric.com`
		A	66.226.70.72^{🇨🇦 Hostopia, a HostPapa, Inc. company [USA]}
			PTR	`mx3c28.carrierzone.com`
MX	`mx4c28.concentric.com`
		A	66.226.70.73^{🇨🇦 Hostopia, a HostPapa, Inc. company [USA]}
			PTR	`mx4c28.carrierzone.com`

`harvard.net`

	MX	`mx1c28.concentric.com`
	MX	`mx2c28.concentric.com`
	MX	`mx3c28.concentric.com`
	MX	`mx4c28.concentric.com`
	NS	`ns-scrm.verizonwireless.com`
	NS	`ns-tmtr.verizonwireless.com`
	NS	`ns-twbg.verizonwireless.com`
	A	204.74.99.100^{🇺🇸 Neustar}

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AI analysis

postoffice.harvard.net is handled by four mail servers: mx1c28.concentric.com, mx2c28.concentric.com, mx3c28.concentric.com and mx4c28.concentric.com.

postoffice.harvard.net shares some mail servers with other domains, including mailhost.concentric.com, neurofilmfestival.net, gatewaytractor.com, wcfoa.org and sw.xo.com.

Host names with one IP number: mx1c28.concentric.com points to 66.226.70.78; mx2c28.concentric.com points to 66.226.70.79; mx3c28.concentric.com points to 66.226.70.72; mx4c28.concentric.com points to 66.226.70.73.

dbq