SSL-Tools

SSL check results of tnc.ru

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Discover if the mail servers for tnc.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 Wed, 06 May 2026 15:19:08 +0000

The mailservers of tnc.ru can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.tnc.ru
217.78.176.38
 10
supported
mail1.tnc.ru
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail1.tnc.ru

Certificate chain
  • mail1.tnc.ru
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E7
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail1.tnc.ru
Alternative Names
  • imap.tnc.ru
  • mail.tnc.ru
  • mail1.tnc.ru
  • newmail.tnc.ru
  • pop3.tnc.ru
  • smtp.tnc.ru
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E7
validity period
Not valid before
2026-05-04
Not valid after
2026-08-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
1E:FD:DA:03:D4:75:F8:6B:B0:80:FA:22:AE:97:99:28:57:CB:37:B9:DA:33:E2:24:04:0C:E5:D8:A4:B4:EB:E9
SHA1
AF:20:A7:F4:7C:A9:AE:10:A8:B4:EE:52:EB:34:F0:33:D2:05:A5:E5
X509v3 extensions
subjectKeyIdentifier
  • F5:8B:E0:6C:3B:70:69:6A:EF:DC:41:C8:64:E4:B5:FC:92:8E:CA:D4
authorityKeyIdentifier
  • keyid:AE:48:9E:DC:87:1D:44:A0:6F:DA:A2:E5:60:74:04:78:C2:9C:00:80
authorityInfoAccess
  • CA Issuers - URI:http://e7.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e7.c.lencr.org/89.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D:
  • E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A
  • Timestamp : May 4 08:33:59.043 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DA:A2:7B:AC:25:9E:D5:E8:CF:6C:EF:
  • DB:3F:F9:76:4D:F2:FD:61:94:51:73:E1:31:C7:3C:F0:
  • 4B:E6:EB:4D:50:02:20:4A:4D:79:9F:15:EC:72:18:17:
  • 36:E3:A0:67:E5:22:C9:06:BB:70:4D:64:70:53:AD:D8:
  • 05:F6:F9:37:12:31:2D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86:
  • D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF
  • Timestamp : May 4 08:33:59.701 2026 GMT
  • Extensions: 00:00:05:00:0E:C0:14:1B
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:4D:36:6E:AB:FE:FF:8C:40:3B:43:9A:87:
  • 11:78:AA:46:06:F4:5A:F5:68:74:EF:50:1C:EC:CA:C6:
  • 68:1A:AB:F8:02:21:00:A7:A5:87:C9:FB:43:23:0F:1A:
  • 26:97:62:02:50:1E:FE:04:F9:6C:3B:44:5D:F7:58:FD:
  • B0:21:80:22:A8:8E:27