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SSL check results of suretka.net

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Discover if the mail servers for suretka.net 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, 07 Jun 2026 00:30:40 +0000

The mailservers of suretka.net can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @suretka.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.suretka.net
143.255.28.13
 10
supported
mail.suretka.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
13 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.suretka.net

Certificate chain
  • mail.suretka.net
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE1
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • mail.suretka.net
Alternative Names
  • mail.suretka.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE1
validity period
Not valid before
2026-06-02
Not valid after
2026-08-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
15:D5:B6:4B:74:F3:26:17:EF:B3:7C:EB:A0:38:0E:AB:8C:67:FB:10:98:8D:01:54:2E:2D:00:00:E4:13:DD:55
SHA1
51:97:BA:68:C2:E0:79:12:E5:EF:7E:8D:C5:2D:21:1D:E8:93:7A:BF
X509v3 extensions
subjectKeyIdentifier
  • 86:A8:95:D2:28:22:39:A4:FB:53:94:0C:7C:33:BD:D7:D6:B0:54:68
authorityKeyIdentifier
  • keyid:BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityInfoAccess
  • CA Issuers - URI:http://ye1.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye1.c.lencr.org/116.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A8:26:CB:E3:0A:C6:35:12:46:53:3F:E0:65:F1:4F:19:
  • D9:6E:19:08:13:C4:1D:D9:6D:79:00:B3:12:3C:55:27
  • Timestamp : Jun 2 20:48:12.946 2026 GMT
  • Extensions: 00:00:05:00:0D:BC:C8:A5
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:27:AF:28:33:B2:D5:34:7E:01:B9:2C:37:
  • 32:22:A3:A9:19:7D:BE:D6:63:1B:21:79:E9:3E:9D:F0:
  • 3E:04:94:AC:02:20:10:84:1E:33:F5:F8:4E:3D:7B:49:
  • 3D:2C:72:30:00:B8:80:C7:EF:1C:9B:8F:AB:82:61:D1:
  • B7:CF:9A:50:2C:15
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
  • B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
  • Timestamp : Jun 2 20:48:12.988 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1B:76:51:91:E1:12:95:88:86:81:8A:4F:
  • BC:48:4C:CB:1E:28:F7:8C:74:A2:D6:7F:64:1C:BC:1E:
  • 4C:EC:6E:E9:02:20:50:DB:4E:FF:7C:D6:AA:93:BC:63:
  • BA:49:73:0D:ED:E8:DA:7C:26:EB:47:44:18:D2:84:74:
  • 88:C3:E8:66:5C:D8