SSL-Tools

SSL check results of asb-hannover.de

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Discover if the mail servers for asb-hannover.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 Thu, 17 Jul 2025 14:27:11 +0000

The mailservers of asb-hannover.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @asb-hannover.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailgate.asb-hannover.de
87.191.46.86
 10
supported
*.asb-hannover.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @asb-hannover.de address so far. Test mail delivery

Certificates

First seen at:

CN=*.asb-hannover.de

Certificate chain
Subject
Common Name (CN)
  • *.asb-hannover.de
Alternative Names
  • *.asb-hannover.de
  • asb-hannover.de
Issuer
Country (C)
  • GB
State (ST)
  • Greater Manchester
Locality (L)
  • Salford
Organization (O)
  • Sectigo Limited
Common Name (CN)
  • Sectigo RSA Domain Validation Secure Server CA
validity period
Not valid before
2025-05-31
Not valid after
2026-07-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3A:52:0A:DE:87:46:22:56:38:58:1A:78:12:2A:7F:8D:16:6F:4F:7E:41:D1:70:46:94:EC:0D:C0:49:6C:EB:7B
SHA1
F7:18:42:10:F8:1D:C8:37:A9:5D:B2:4A:4D:CA:D1:1D:5D:31:D6:89
X509v3 extensions
authorityKeyIdentifier
  • keyid:8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
subjectKeyIdentifier
  • 5A:79:25:6D:3E:DA:11:3C:F1:AC:DD:69:FA:C7:3F:30:F7:B8:BC:0F
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.2.7
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
  • OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
  • 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 : May 31 12:19:27.199 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:BE:7D:7F:62:3F:87:5C:32:6E:D1:DB:
  • 63:7A:D9:57:9D:15:4B:D6:7C:C4:DB:F5:34:97:7A:8C:
  • 06:C0:43:90:96:02:20:2E:0D:C7:30:08:E4:F8:0A:90:
  • C0:4D:2A:29:08:3A:C5:80:57:93:CE:6F:97:27:75:3E:
  • C6:6C:CF:6C:AF:40:DB
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11:
  • 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3
  • Timestamp : May 31 12:19:27.086 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A9:82:25:C8:49:16:04:6C:EA:A5:DA:
  • AF:17:DB:EC:15:A3:83:56:C9:D8:A6:7A:A3:B7:04:6B:
  • A3:9F:86:77:26:02:21:00:9F:2A:F5:BB:8F:41:5A:B7:
  • 9A:DD:B3:84:FC:E8:5E:0D:E1:76:71:E5:21:62:9A:E6:
  • 05:BA:1C:E9:23:67:4E:9C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : May 31 12:19:27.225 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A0:10:19:B0:C4:D5:44:EA:4C:AB:1D:
  • 3F:DB:3F:14:10:98:73:E4:8D:6C:6B:15:9C:71:8D:89:
  • 62:C6:02:8A:D6:02:21:00:D2:52:D5:9A:13:9A:58:1D:
  • BC:FC:B5:59:6C:82:C4:31:2D:0D:C3:01:32:23:18:FB:
  • 90:36:CC:76:04:FC:80:80