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SSL check results of nazgul.is-buchholz.de

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Discover if the mail servers for nazgul.is-buchholz.de 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 Fri, 07 Nov 2025 14:00:28 +0000

The mailservers of nazgul.is-buchholz.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @nazgul.is-buchholz.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
nazgul.is-buchholz.de
134.255.239.230
 -
supported
nazgul.is-buchholz.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
nazgul.is-buchholz.de
2a02:d40:3:7::86ff:efe6
 -
supported
nazgul.is-buchholz.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @nazgul.is-buchholz.de address so far. Test mail delivery

Certificates

First seen at:

CN=nazgul.is-buchholz.de

Certificate chain
  • nazgul.is-buchholz.de
    • 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)
  • nazgul.is-buchholz.de
Alternative Names
  • nazgul.is-buchholz.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E7
validity period
Not valid before
2025-11-07
Not valid after
2026-02-05
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BE:AE:58:07:60:B8:9D:01:AD:66:9A:BB:E9:E6:E5:39:60:62:1A:51:3D:7F:9C:A0:91:D5:69:5B:35:FC:28:CB
SHA1
D8:61:07:83:CB:AC:11:21:AF:A6:0E:F0:18:F6:C5:93:2B:F4:A7:55
X509v3 extensions
subjectKeyIdentifier
  • 47:A2:E2:06:D2:51:2E:5B:5F:D1:19:1C:F8:CE:FB:35:5F:A9:77:A8
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/100.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
  • F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
  • Timestamp : Nov 7 13:36:50.555 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A4:42:DE:FD:1F:64:93:FC:48:01:23:
  • 52:E2:21:48:8B:C8:14:13:34:F6:3E:8D:A6:8F:E3:4B:
  • 99:B7:21:44:30:02:21:00:D5:D5:CE:28:1B:03:6B:59:
  • D8:1D:FA:B1:92:7F:47:5E:B6:C3:D3:68:CF:CA:0E:D7:
  • 02:0E:BC:84:14:C8:E0:D6
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77:
  • E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6
  • Timestamp : Nov 7 13:36:50.592 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:25:10:C5:51:C7:DA:90:11:8C:C8:ED:63:
  • 1B:88:3C:08:28:DB:67:1E:4B:2A:71:55:C3:EE:62:83:
  • B1:77:78:A3:02:20:27:B6:26:7A:A0:47:A0:B4:06:A9:
  • DE:4E:DF:3B:CC:78:86:03:EB:41:4D:30:5D:3C:0C:BF:
  • 0F:C3:2D:B0:04:D4