NSLIST.NET - smtp.rtmail.co.uk

Search for IP or hostnames:

smtp.rtmail.co.uk checked at 2025-09-27T23:18:30.447Z 230ms 91/91/91 100% R:15

`smtp.rtmail.co.uk`

CNAME	`smtp.emailsrvr.com`
NS	`pdns219.ultradns.biz`
		A	2610:a1:1015::ff ^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.biz`
		A	156.154.66.219^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.biz`
NS	`ns2.rackspace.com`
		A	65.61.188.4^{🇺🇸 RACKSPACE-LON}
			PTR	`ns2.rackspace.com`
NS	`ns.rackspace.com`
		A	69.20.95.4^{🇺🇸 RACKSPACE-IAD}
			PTR	`ns.rackspace.com`
NS	`pdns219.ultradns.com`
		A	2001:502:f3ff::ff ^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.com`
		A	156.154.64.219^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.com`
NS	`pdns219.ultradns.net`
		A	2610:a1:1014::ff ^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.net`
		A	156.154.65.219^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.net`
NS	`pdns219.ultradns.org`
		A	2001:502:4612::ff ^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.org`
		A	156.154.67.219^{🇺🇸 Neustar}
			PTR	`pdns219.ultradns.org`
A	146.20.161.11^{🇺🇸 RACKSPACE-IAD}
		PTR	`smtp.emailsrvr.com`

`rtmail.co.uk`

	MX	`mx1.emailsrvr.com`
	MX	`mx2.emailsrvr.com`
	NS	`dns1.stabletransit.com`
	NS	`dns2.stabletransit.com`
	A	212.64.146.83^{🇬🇧 RACKSPACE-LON}

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AI analysis

smtp.rtmail.co.uk points to a single IP: 146.20.161.11.

Other host names, such as smtp.emailsrvr.com, share IP numbers with smtp.rtmail.co.uk.

smtp.rtmail.co.uk is delegated to six name servers: pdns219.ultradns.biz, ns2.rackspace.com, ns.rackspace.com, pdns219.ultradns.com, pdns219.ultradns.net and pdns219.ultradns.org.

smtp.rtmail.co.uk partially shares name servers with other domains; examples include shazamm.net, cbostore.com, ef-f.com, 108.213.134.in-addr.arpa and 69.20.209.in-addr.arpa.

these name servers are commonly used with the name servers dns1.stabletransit.com.

Host names with two IP numbers

pdns219.ultradns.biz points to 2610:a1:1015::ff and 156.154.66.219

pdns219.ultradns.com points to 2001:502:f3ff::ff and 156.154.64.219

pdns219.ultradns.net points to 2610:a1:1014::ff and 156.154.65.219

pdns219.ultradns.org points to 2001:502:4612::ff and 156.154.67.219

Host names with one IP number

ns2.rackspace.com points to 65.61.188.4

ns.rackspace.com points to 69.20.95.4

dbq