SSL check results of hohlbaum.koeln

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Discover if the mail servers for hohlbaum.koeln 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

Report created Wed, 27 May 2020 00:38:32 +0000

The mailservers of hohlbaum.koeln can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @hohlbaum.koeln addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.hohlbaum.koeln
2a01:238:42de:7f00:17e6:d7e2:a944:a5be
10
supported
hohlbaum.koeln
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s
mail.hohlbaum.koeln
85.214.240.237
10
supported
hohlbaum.koeln
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 @hohlbaum.koeln address so far. Test mail delivery

Certificates

First seen at:

CN=hohlbaum.koeln

Certificate chain
Subject
Common Name (CN)
  • hohlbaum.koeln
Alternative Names
  • *.hohlbaum.koeln
  • hohlbaum.koeln
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-07
Not valid after
2020-08-05
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B0:C8:65:0F:F1:89:7F:47:4F:E7:C8:C2:09:FB:3B:8A:47:17:6D:6E:79:0E:2F:5A:C7:1E:4D:B9:94:3F:89:6B
SHA1
03:B1:4F:AE:7D:28:77:AB:B8:C7:62:1B:E4:9B:58:FC:E7:86:BF:27
X509v3 extensions
subjectKeyIdentifier
  • F5:20:E7:20:B6:D3:C0:CF:ED:55:B6:42:46:82:C1:8A:4B:FA:C0:BC
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : May 7 08:16:13.722 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2C:96:25:58:69:74:54:1E:38:5A:CC:55:
  • A4:7B:45:8E:5A:0B:96:61:A7:18:87:D8:02:A0:1A:22:
  • B2:82:44:8A:02:21:00:96:E8:C8:24:CF:90:1D:DE:10:
  • 8E:60:F8:46:76:2F:89:05:C1:73:1F:95:C3:DC:9F:F4:
  • 2E:C9:77:14:11:B7:78
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : May 7 08:16:13.766 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5B:A5:97:F0:C5:1F:B8:0F:D8:AF:03:F3:
  • 9F:C4:2B:7F:FD:A1:18:2E:80:CA:33:B4:16:12:F4:C2:
  • CD:A0:BD:88:02:20:1E:E0:C3:7D:5B:03:A0:14:60:6C:
  • D2:CC:2E:3F:31:DC:45:AC:65:36:85:A4:02:02:CF:BB:
  • 0D:56:B2:85:D9:58