133.11.14.12

Basic Information

Network
UTNET The University of Tokyo (JP)
Routing
133.11.0.0/16 via AS11537 , AS2907 , AS2501
Protocols
587/SMTP, 25/SMTP
Tags
smtp

25/SMTP


Details

Banner Grab and StartTLS Initiation

Server
Postfix
Banner
220 ms.casys.is.s.u-tokyo.ac.jp ESMTP Postfix (Ubuntu)
EHLO
250-ms.casys.is.s.u-tokyo.ac.jp
250-PIPELINING
250-SIZE 20480000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8
STARTTLS
220 2.0.0 Ready to start TLS

TLS Handshake

Version
TLSv1.2
Cipher Suite
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xC02F)

Certificate Chain

d8bdbe9a8345e1f65b88db25f0716bbf6aa2d0b5bd95404a4f6ed68fe433d4f4
C=JP, ST=Tokyo, O=The University of Tokyo, OU=CASYS, CN=ms.casys.is.s.u-tokyo.ac.jp, [email protected]
C=JP, ST=Tokyo, L=Bunkyo, O=The University of Tokyo, OU=CASYS, CN=ms.casys.is.s.u-tokyo.ac.jp, [email protected]

587/SMTP


Details

Banner Grab and StartTLS Initiation

Server
Postfix
Banner
220 ms.casys.is.s.u-tokyo.ac.jp ESMTP Postfix (Ubuntu)
EHLO
250-ms.casys.is.s.u-tokyo.ac.jp
250-PIPELINING
250-SIZE 20480000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8
STARTTLS
220 2.0.0 Ready to start TLS

TLS Handshake

Version
TLSv1.2
Cipher Suite
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xC02F)

Certificate Chain

d8bdbe9a8345e1f65b88db25f0716bbf6aa2d0b5bd95404a4f6ed68fe433d4f4
C=JP, ST=Tokyo, O=The University of Tokyo, OU=CASYS, CN=ms.casys.is.s.u-tokyo.ac.jp, [email protected]
C=JP, ST=Tokyo, L=Bunkyo, O=The University of Tokyo, OU=CASYS, CN=ms.casys.is.s.u-tokyo.ac.jp, [email protected]

Geographic Location

City
Matsudo
Province
Chiba
Country
Japan (JP)
Lat/Long
35.7834, 139.8958
Timezone
Asia/Tokyo