SSL-Tools

SSL check results of guillaumenet.de

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Discover if the mail servers for guillaumenet.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 Wed, 24 Apr 2024 14:21:02 +0000

The mailservers of guillaumenet.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @guillaumenet.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.guillaumenet.de
95.88.100.57
 10
supported
mail.guillaumenet.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx00.ionos.de
212.227.15.41
Results incomplete
20
supported
mx.kundenserver.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 @guillaumenet.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.guillaumenet.de

Certificate chain
  • mail.guillaumenet.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.guillaumenet.de
Alternative Names
  • mail.guillaumenet.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-23
Not valid after
2024-07-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A9:39:D2:A0:D5:42:D7:56:27:68:BC:AD:4A:20:2C:8F:50:BF:3A:BB:E1:54:AA:07:64:D2:27:9C:47:4A:09:6C
SHA1
C3:DF:44:0C:70:C2:02:40:E1:B2:66:D1:3F:FB:6F:9D:E3:22:69:55
X509v3 extensions
subjectKeyIdentifier
  • 3D:16:9F:E3:76:10:CC:B3:B3:CF:83:EF:9C:B4:85:CF:CB:E4:1D:D1
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Apr 23 17:01:59.681 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:4E:E8:5E:C8:77:62:2E:85:DD:4E:D2:62:
  • CF:18:8E:6B:5B:FB:5C:9F:E7:71:51:5D:1F:B2:BA:48:
  • E3:FA:59:CC:02:20:02:C3:93:7E:6E:25:CD:BB:0D:C3:
  • 5E:3D:CB:4C:FD:E9:F8:76:A5:0C:29:03:2F:3D:DB:46:
  • 96:3F:FD:39:87:60
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:98:10:71:09:F0:D6:52:2E:30:80:D2:9E:3F:64:BB:
  • 83:6E:28:CC:F9:0F:52:8E:EE:DF:CE:4A:3F:16:B4:CA
  • Timestamp : Apr 23 17:01:59.686 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A0:77:0B:56:8B:1C:D8:B9:B5:2B:59:
  • 09:55:CE:A8:01:F5:41:9C:DD:1D:9D:EB:2B:46:53:90:
  • E6:1B:73:3C:8F:02:21:00:86:52:28:BE:3E:EA:8C:CB:
  • BD:EC:54:DB:1D:55:8B:27:E5:0E:7D:09:16:DC:6C:4E:
  • 2B:7D:43:3F:A5:D0:7F:9C
First seen at:

CN=mx.kundenserver.de,L=Montabaur,ST=Rheinland-Pfalz,O=IONOS SE,C=DE

Certificate chain
Subject
Country (C)
  • DE
Organization (O)
  • IONOS SE
State (ST)
  • Rheinland-Pfalz
Locality (L)
  • Montabaur
Common Name (CN)
  • mx.kundenserver.de
Alternative Names
  • mx.kundenserver.de
  • mx00.kundenserver.de
  • mx01.kundenserver.de
  • mx00.emig.kundenserver.de
  • mx01.emig.kundenserver.de
  • mx00.ionos.co.uk
  • mx00.ionos.de
  • mx00.ionos.es
  • mx00.ionos.fr
  • mx00.ionos.it
  • mx01.ionos.co.uk
  • mx01.ionos.de
  • mx01.ionos.es
  • mx01.ionos.fr
  • mx01.ionos.it
Issuer
Country (C)
  • DE
Organization (O)
  • Deutsche Telekom Security GmbH
Common Name (CN)
  • Telekom Security ServerID OV Class 2 CA
validity period
Not valid before
2023-06-20
Not valid after
2024-06-24
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Client Authentication
  • TLS Web Server Authentication
Fingerprints
SHA256
1F:6A:2C:67:89:25:82:D8:4C:DC:10:43:39:5C:42:C7:7B:6D:F9:CC:E7:4A:C8:2D:C0:3F:73:DB:74:04:1F:6B
SHA1
3B:FC:62:BD:7D:34:01:3A:34:64:ED:CB:77:53:68:C7:56:75:43:F9
X509v3 extensions
authorityKeyIdentifier
  • keyid:1C:05:93:B1:7F:A8:34:30:8C:52:E0:96:40:A0:72:A3:10:5D:E0:FF
subjectKeyIdentifier
  • F3:C2:C4:71:67:E0:F9:14:2C:70:37:4E:C6:67:43:C4:EF:9B:62:86
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://docs.serverid.telesec.de/cps/serverid.htm
crlDistributionPoints
  • Full Name:
  • URI:http://crl.serverid.telesec.de/rl/Telekom_Security_ServerID_OV_Class_2_CA.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.serverid.telesec.de/ocspr
  • CA Issuers - URI:http://crt.serverid.telesec.de/crt/Telekom_Security_ServerID_OV_Class_2_CA.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Jun 20 11:08:15.028 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D0:4D:29:91:4C:56:A5:D8:D1:DF:26:
  • AD:DA:4A:CF:83:DE:B8:69:2D:D2:95:69:FF:E7:AA:2A:
  • 63:ED:DE:E9:95:02:21:00:CE:A0:EC:61:84:1A:D7:8E:
  • DC:54:11:B7:10:8E:EC:CB:F4:B9:96:5F:57:36:13:10:
  • B3:BD:8D:A1:46:ED:68:FF
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Jun 20 11:08:14.981 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:C8:7E:E6:B9:FB:21:A0:8F:E8:AC:DA:
  • C5:CC:93:81:C9:0F:6A:9B:96:5D:A4:2B:32:7D:6B:FA:
  • D7:14:6C:02:22:02:20:42:F6:C1:45:69:CD:56:04:17:
  • 48:5B:C7:B2:A3:2D:09:82:57:7A:E1:0F:EE:83:27:64:
  • 6B:5B:5B:A5:D6:C4:13
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 55:81:D4:C2:16:90:36:01:4A:EA:0B:9B:57:3C:53:F0:
  • C0:E4:38:78:70:25:08:17:2F:A3:AA:1D:07:13:D3:0C
  • Timestamp : Jun 20 11:08:15.319 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D0:0D:66:C9:BC:24:A7:BB:C1:7E:24:
  • 7D:A7:E7:DF:D4:16:A6:98:E6:99:55:60:64:49:FE:66:
  • CD:1B:C9:2C:9F:02:21:00:AB:1E:11:6C:33:4D:31:38:
  • 1F:F8:04:3D:CC:DC:AE:A0:BA:5D:10:9E:BA:71:D4:B9:
  • 71:45:F6:A2:DD:54:3A:C4
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Jun 20 11:08:15.275 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:C9:97:73:6F:D7:B0:03:62:79:87:DB:
  • C2:72:80:D5:45:94:BC:BB:07:C0:E2:27:76:9C:C2:69:
  • 13:66:20:4F:75:02:20:4F:DB:64:6B:50:54:B7:CC:FC:
  • 4B:36:47:D3:88:C8:1B:11:D5:AF:F8:54:D0:9C:B8:08:
  • 2A:26:63:3C:76:FC:34