SSL-Tools

SSL check results of vip.niisi.ru

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Discover if the mail servers for vip.niisi.ru can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

JSON Refresh

Report created Sun, 15 Feb 2026 01:30:30 +0000

We can not guarantee a secure connection to the mailservers of vip.niisi.ru!

Please contact the operator of vip.niisi.ru and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/vip.niisi.ru

Servers

Incoming Mails

These servers are responsible for incoming mails to @vip.niisi.ru addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
vip.niisi.ru
193.232.173.56
 10
supported
Microsoft Exchange Server Auth Certificate
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s
ns.infomir.ru
193.232.173.6
Results incomplete
20
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @vip.niisi.ru address so far. Test mail delivery

Certificates

First seen at:

CN=Microsoft Exchange Server Auth Certificate

Certificate chain
Subject
Common Name (CN)
  • Microsoft Exchange Server Auth Certificate
Common Name is not included in Alternative Names
Alternative Names
  • vip.niisi.ru
Issuer

Certificate is self-signed.

validity period
Not valid before
2024-02-17
Not valid after
2029-02-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
AC:B1:E2:5A:07:F7:01:7F:13:A6:24:D2:32:F3:42:CE:4A:F7:3E:5A:76:82:B1:6D:CF:BA:B3:C5:82:58:56:2A
SHA1
A3:29:AB:AB:D2:6F:03:35:04:B1:E4:3A:98:F1:7E:EE:88:C6:2A:7F