SSL-Tools

SSL check results of tema.sh

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Discover if the mail servers for tema.sh 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 Tue, 09 Sep 2025 11:38:03 +0000

The mailservers of tema.sh can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @tema.sh addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
turing.53.tf
2a01:4f8:190:7192::2
 10
supported
53.tf
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s
turing.53.tf
144.76.1.155
 10
supported
53.tf
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

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

Certificates

First seen at:

CN=53.tf

Certificate chain
  • 53.tf
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E5
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • 53.tf
Alternative Names
  • *.53.tf
  • 53.tf
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E5
validity period
Not valid before
2025-08-05
Not valid after
2025-11-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4B:9E:36:79:8D:5A:C1:52:F3:EA:07:8B:1B:9C:E2:DE:FA:3B:17:43:D2:C2:C3:6D:BF:88:09:24:57:D4:BC:06
SHA1
38:59:97:6E:01:A6:F5:F8:07:21:D7:68:7F:14:68:F3:CF:7C:39:88
X509v3 extensions
subjectKeyIdentifier
  • 17:23:47:82:5D:5C:54:D5:53:C7:EC:52:36:AF:7B:6B:F5:EA:E0:54
authorityKeyIdentifier
  • keyid:9F:2B:5F:CF:3C:21:4F:9D:04:B7:ED:2B:2C:C4:C6:70:8B:D2:D7:0D
authorityInfoAccess
  • CA Issuers - URI:http://e5.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e5.c.lencr.org/80.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : ED:3C:4B:D6:E8:06:C2:A4:A2:00:57:DB:CB:24:E2:38:
  • 01:DF:51:2F:ED:C4:86:C5:70:0F:20:DD:B7:3E:3F:E0
  • Timestamp : Aug 5 10:37:42.548 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:FE:B2:76:B8:F1:D5:E4:32:AE:B1:1F:
  • F4:A7:90:70:C7:FF:64:47:78:D3:86:D2:24:26:CD:1A:
  • 78:2B:B2:E6:EF:02:20:6C:81:77:74:9F:11:FE:99:AE:
  • AA:D4:CC:5C:C6:C9:2A:20:EF:A4:79:65:46:E8:C9:C7:
  • 01:AB:C9:0E:93:16:1F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Aug 5 10:37:42.555 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:44:23:F0:95:62:6C:E9:20:67:29:A3:55:
  • 10:A8:B8:04:3E:DD:EF:7F:FA:C3:71:66:8B:D4:AC:1E:
  • F8:11:E5:81:02:21:00:92:8C:41:5E:64:69:EB:DE:86:
  • E8:3D:39:90:1E:6E:27:CB:8C:FA:E9:3B:D1:B7:D8:5A:
  • CB:4D:21:56:D9:A2:CC