WWW.RTSAK.COM - smtp.firstlineins.com

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smtp.firstlineins.com checked at 2025-10-31T12:58:52.322Z 975ms 25/25/25 100% R:9

`smtp.firstlineins.com`

	A	63.234.23.2^{🇺🇸 Centurylink}
			PTR	`63-234-23-2.dia.static.qwest.net`

`firstlineins.com`

	NS	`ns39.worldnic.com`
	NS	`ns40.worldnic.com`
	MX	`d234453a.ess.barracudanetworks.com`
	MX	`d234453b.ess.barracudanetworks.com`
	A	209.17.116.163^{🇺🇸 AS19871}

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AI analysis

smtp.firstlineins.com resolves to one IP number: 63.234.23.2.

Other host names, for instance 63-234-23-2.dia.static.qwest.net, share IP numbers with smtp.firstlineins.com.

dbq