WWW.RTSAK.COM - mail.coursebooks.com

Search for IP or hostnames:

mail.coursebooks.com checked at 2025-09-26T20:03:17.913Z 324ms 193/193/193 100% R:16

`mail.coursebooks.com`

CNAME	`coursebooks.com`
MX	`mail.coursebooks.com`
		A	162.243.204.10^{🇺🇸 DigitalOcean}
MX	`aspmx2.googlemail.com`
		A	2a00:1450:400b:c02::1b ^{🇮🇪 Google}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`
		A	2a00:1450:400c:c00::1b ^{🇧🇪 Google}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.26^{🇺🇸 Google}
			PTR	`ws-in-f26.1e100.net`
NS	`jake.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7a ^{🇺🇸 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17a ^{🇨🇷 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217a ^{🇺🇸 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
		A	108.162.193.122^{🇺🇸 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
		A	172.64.33.122^{🇺🇸 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
		A	173.245.59.122^{🇺🇸 Cloudflare}
			PTR	`jake.ns.cloudflare.com`
NS	`leah.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a81 ^{🇺🇸 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c081 ^{🇨🇷 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2081 ^{🇺🇸 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
		A	108.162.192.129^{🇺🇸 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
		A	172.64.32.129^{🇺🇸 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
		A	173.245.58.129^{🇺🇸 Cloudflare}
			PTR	`leah.ns.cloudflare.com`
MX	`aspmx.l.google.com`
		A	2607:f8b0:4004:c0b::1a ^{🇺🇸 Google}
			PTR	`bj-in-f26.1e100.net`
		A	172.253.62.26^{🇺🇸 Google}
			PTR	`bc-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`
		A	2a00:1450:400b:c02::1b ^{🇮🇪 Google}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google}
			PTR	`dj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`
		A	2a00:1450:400c:c00::1a ^{🇧🇪 Google}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.27^{🇺🇸 Google}
			PTR	`ws-in-f27.1e100.net`
A	2606:4700:3033::6815:d8 ^{🇺🇸 Cloudflare}
A	2606:4700:3033::ac43:8050 ^{🇺🇸 Cloudflare}
A	104.21.0.216^Cloudflare
A	172.67.128.80^{🇺🇸 Cloudflare}

`coursebooks.com`

	MX	`mail.coursebooks.com`
	MX	`aspmx2.googlemail.com`
	MX	`aspmx3.googlemail.com`
	NS	`jake.ns.cloudflare.com`
	NS	`leah.ns.cloudflare.com`
	MX	`aspmx.l.google.com`
	MX	`alt1.aspmx.l.google.com`
	MX	`alt2.aspmx.l.google.com`
	A	2606:4700:3033::6815:d8 ^{🇺🇸 Cloudflare}
	A	2606:4700:3033::ac43:8050 ^{🇺🇸 Cloudflare}
	A	104.21.0.216^Cloudflare
	A	172.67.128.80^{🇺🇸 Cloudflare}

MX for

coursebooks.com

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AI analysis

mail.coursebooks.com is the mail server for coursebooks.com.

aspmx2.googlemail.com, aspmx3.googlemail.com and aspmx.l.google.com are commonly used as mail servers in conjunction with mail.coursebooks.com.

mail.coursebooks.com maps to four IP numbers: 2606:4700:3033::6815:d8, 2606:4700:3033::ac43:8050, 104.21.0.216 and 172.67.128.80.

Other host names, for instance qtqueenstown.com, fonzizi.com, bepicks.com, www.timeruns.net and bitsthree.com share IP numbers with mail.coursebooks.com.

Two name servers jake.ns.cloudflare.com and leah.ns.cloudflare.com are delegated to mail.coursebooks.com.

mail.coursebooks.com uses the same name server configuration as other domains, such as daygard.com, webdesign-podcast.com, ymeta.net, randomcage.com and 5thavenuecosmetics.co.uk.

mail.coursebooks.com at least partially shares name servers with other domains such as video-buzz.com, infoland.ro, iznat.com, biolab.com.sg and mmocdkey.com.

These name servers are commonly used alongside mark.ns.cloudflare.com, sue.ns.cloudflare.com and lily.ns.cloudflare.com.

Host names with six IP numbers: Host name jake.ns.cloudflare.com points to 2606:4700:58::adf5:3b7a, 2803:f800:50::6ca2:c17a, 2a06:98c1:50::ac40:217a, 108.162.193.122, 172.64.33.122 and 173.245.59.122; host name leah.ns.cloudflare.com points to 2606:4700:50::adf5:3a81, 2803:f800:50::6ca2:c081, 2a06:98c1:50::ac40:2081, 108.162.192.129, 172.64.32.129 and 173.245.58.129.

Six mail servers handle mail.coursebooks.com: mail.coursebooks.com, aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

mail.coursebooks.com shares mail servers with other domains at least in part, for instance jacobcaris.com, cbalv.com, wielerflits.be, improbizoni.cz and buggzone.com.

These mail servers are often used together with aspmx4.googlemail.com, aspmx5.googlemail.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Names with two IPs:

aspmx2.googlemail.com points to 2a00:1450:400b:c02::1b and 172.253.116.26.

aspmx3.googlemail.com points to 2a00:1450:400c:c00::1b and 173.194.76.26.

aspmx.l.google.com points to 2607:f8b0:4004:c0b::1a and 172.253.62.26.

alt1.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.26.

alt2.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.27.

Names with one IP:

mail.coursebooks.com points to 162.243.204.10.

Hosts pointing to 2a00:1450:400b:c02::1b: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

Hosts pointing to 172.253.116.26: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

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