WWW.RTSAK.COM - office.iis.u-tokyo.ac.jp
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office.iis.u-tokyo.ac.jp checked at 2025-10-31T09:17:05.065Z 1200ms 52/52/52 100% R:12office.iis.u-tokyo.ac.jp
| MX | ironport1.iis.u-tokyo.ac.jp | ||||||
| A | 157.82.144.166π―π΅ U-TOKYO | ||||||
| PTR | ironport1.iis.u-tokyo.ac.jp | ||||||
| MX | ironport2.iis.u-tokyo.ac.jp | ||||||
| A | 157.82.144.167π―π΅ U-TOKYO | ||||||
| PTR | ironport2.iis.u-tokyo.ac.jp | ||||||
| A | 2404:d540:1:8205:157:82:144:82 π―π΅ U-TOKYO | ||||||
| A | 157.82.144.82π―π΅ U-TOKYO | ||||||
| PTR | office.iis.u-tokyo.ac.jp | ||||||
iis.u-tokyo.ac.jp
| MX | ironport1.iis.u-tokyo.ac.jp | ||||||
| MX | ironport2.iis.u-tokyo.ac.jp | ||||||
| NS | penguin.iis.u-tokyo.ac.jp | ||||||
| NS | dns1.nc.u-tokyo.ac.jp | ||||||
| NS | dns2.nc.u-tokyo.ac.jp | ||||||
| NS | dns3.nc.u-tokyo.ac.jp | ||||||
| A | 157.82.144.140π―π΅ U-TOKYO | ||||||
PTR for
Starts with same word
Starts similarily
AI analysis
office.iis.u-tokyo.ac.jp points to two IP numbers: 2404:d540:1:8205:157:82:144:82 and 157.82.144.82. 
Two mail servers ironport1.iis.u-tokyo.ac.jp and ironport2.iis.u-tokyo.ac.jp handle office.iis.u-tokyo.ac.jp.
office.iis.u-tokyo.ac.jp uses the same mail server setup as other domains such as 1s.iis.u-tokyo.ac.jp, dhcp-148-193.iis.u-tokyo.ac.jp, dhcp-148-220.iis.u-tokyo.ac.jp, dhcp-156-27.iis.u-tokyo.ac.jp and cvl.iis.u-tokyo.ac.jp.
office.iis.u-tokyo.ac.jp shares some mail servers with other domains, including dhcp-148-219.iis.u-tokyo.ac.jp, hadoop-gate.iis.u-tokyo.ac.jp, dhcp-168-53.iis.u-tokyo.ac.jp, dhcp-160-158.iis.u-tokyo.ac.jp and dhcp-164-187.iis.u-tokyo.ac.jp. 
Host names with a single IP:
ironport1.iis.u-tokyo.ac.jp resolves to 157.82.144.166.
ironport2.iis.u-tokyo.ac.jp resolves to 157.82.144.167.