CF1759996771307-tsm20251009061048

WWW.RTSAK.COM - mail.is4u.com

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mail.is4u.com checked at 2025-10-09T07:59:31.291Z 222ms 101/101/101 100% R:17

mail.is4u.com

CNAMEis4u.com
MXmail.is4u.com
MXmail.r4u.com
NScuritiba.ns.porkbun.com
A2400:cb00:2049:1::adf5:3a25 🇺🇸 Cloudflare
A173.245.58.37🇺🇸 Cloudflare
NSfortaleza.ns.porkbun.com
A2400:cb00:2049:1::a29f:88c 🇺🇸 Cloudflare
A162.159.8.140 Cloudflare
NSmaceio.ns.porkbun.com
A2400:cb00:2049:1::a29f:bb4 🇺🇸 Cloudflare
A162.159.11.180 Cloudflare
NSsalvador.ns.porkbun.com
A2400:cb00:2049:1::a29f:a96 🇺🇸 Cloudflare
A162.159.10.150 Cloudflare
A2605:6400:20:13f6::1 🇺🇸 FranTech Solutions
PTRstar.is4u.com
A205.185.122.163🇺🇸 FranTech Solutions
PTRstar.is4u.com

is4u.com

MXmail.is4u.com
MXmail.r4u.com
NScuritiba.ns.porkbun.com
NSfortaleza.ns.porkbun.com
NSmaceio.ns.porkbun.com
NSsalvador.ns.porkbun.com
A2605:6400:20:13f6::1 🇺🇸 FranTech Solutions
A205.185.122.163🇺🇸 FranTech Solutions

MX for

Starts with same word

Starts similarily

AI analysis

mail.is4u.com serves as the mail server for ns1.is4u.com, r4u.com, star.r4u.com, ns2.is4u.com, is4u.com and a few other domains.

mail.r4u.com is commonly used as a mail server alongside mail.is4u.com.

mail.is4u.com has two IP numbers: 2605:6400:20:13f6::1 and 205.185.122.163.

Other host names, for instance server2.is4u.com, server1.is4u.com, ns1.is4u.com, ns2.is4u.com and is4u.com share IP numbers with mail.is4u.com.

mail.is4u.com delegates to four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

mail.is4u.com at least partially shares name servers with other domains, including gnow.co, centrodeformacioncontinua.com, dryanovski.com, provadore.com and kohsamui.org.

Host names with two IP numbers: curitiba.ns.porkbun.com points to 2400:cb00:2049:1::adf5:3a25 and 173.245.58.37; fortaleza.ns.porkbun.com points to 2400:cb00:2049:1::a29f:88c and 162.159.8.140; maceio.ns.porkbun.com points to 2400:cb00:2049:1::a29f:bb4 and 162.159.11.180; salvador.ns.porkbun.com points to 2400:cb00:2049:1::a29f:a96 and 162.159.10.150.

mail.is4u.com is handled by two mail servers: mail.is4u.com and mail.r4u.com.

mail.is4u.com shares the same mail server setup as other domains, for instance ns1.is4u.com, r4u.com, star.r4u.com, ns2.is4u.com and is4u.com.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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IMdCjXV CF johedugfp 2025-10-09