CF1762421678760-tsm20251105200708

MXLIST.NET - mail.is4u.com

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mail.is4u.com checked at 2025-11-06T09:34:38.746Z 250ms 101/101/101 100% R:11

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 a mail server commonly used with mail.is4u.com.

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

Other host names such as server2.is4u.com, server1.is4u.com, ns1.is4u.com, ns2.is4u.com and is4u.com share IPs with mail.is4u.com.

mail.is4u.com is delegated 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, for example 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

Two mail servers handle mail.is4u.com: mail.is4u.com and mail.r4u.com.

mail.is4u.com shares the same mail server setup as other domains, including 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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