SSL-Tools

SSL check results of bszleo.de

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Discover if the mail servers for bszleo.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 Sat, 27 Jul 2024 00:30:43 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx4.belwue.de
2001:7c0:0:76::4
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx4.belwue.de
2001:7c0:0:76::3
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx4.belwue.de
129.143.76.3
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx4.belwue.de
129.143.76.4
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx2.belwue.de
2001:7c0:0:76::2
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx2.belwue.de
129.143.76.2
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx3.belwue.de
2001:7c0:0:76::3
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx3.belwue.de
129.143.76.3
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx1.belwue.de
2001:7c0:0:76::1
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx1.belwue.de
2001:7c0:0:76::2
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx1.belwue.de
129.143.76.1
 10
supported
mx1.belwue.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
mx1.belwue.de
129.143.76.2
 10
supported
mx1.belwue.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 @bszleo.de address so far. Test mail delivery

Certificates

First seen at:

CN=mx1.belwue.de

Certificate chain
  • mx1.belwue.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)
  • mx1.belwue.de
Alternative Names
  • mail-in04.belwue.de
  • mx1.belwue.de
  • mx2.belwue.de
  • mx3.belwue.de
  • mx4.belwue.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-06-01
Not valid after
2024-08-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
78:DE:6D:79:CD:B4:AC:95:93:F2:1A:8D:F6:FB:F0:13:2A:2D:A0:BC:05:29:B1:12:75:3D:38:B8:4D:61:CD:37
SHA1
CD:94:0C:23:3C:8B:9E:68:5B:7B:69:27:D9:46:A3:9D:6F:8E:D4:3C
X509v3 extensions
subjectKeyIdentifier
  • D3:3B:93:18:E2:38:2D:22:11:34:53:14:BF:7D:4F:98:72:EA:F2:CA
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 : Jun 1 03:49:46.475 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:C7:85:51:76:54:E2:49:8C:31:72:4C:
  • 21:CF:C5:74:7F:F4:F9:2A:20:D6:82:71:BA:DA:FA:7E:
  • 75:0F:6A:D4:A6:02:21:00:B5:DB:AB:5E:AA:35:BA:4D:
  • 8F:E8:C3:9E:22:51:A8:EE:E7:78:C2:C0:83:A4:51:13:
  • FE:B8:AD:5D:44:82:DC:C2
  • 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 1 03:49:46.480 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:93:5B:3E:37:69:F5:8C:E2:E5:A3:D2:
  • 94:31:4C:52:56:0D:F2:4E:26:0D:EF:64:89:3E:11:82:
  • D0:CC:2A:52:FE:02:20:56:71:B9:34:06:95:B3:E6:05:
  • 6F:FD:06:69:30:21:0B:F0:83:59:94:4C:8F:86:36:BA:
  • 39:8C:6F:E5:A1:AB:62
First seen at:

CN=mx1.belwue.de

Certificate chain
  • mx1.belwue.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.belwue.de
Alternative Names
  • mail-in03.belwue.de
  • mx1.belwue.de
  • mx2.belwue.de
  • mx3.belwue.de
  • mx4.belwue.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-07-01
Not valid after
2024-09-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
96:CD:EC:14:0E:C6:A2:23:5E:36:E1:83:D6:64:03:2A:F9:26:DC:B9:A5:A3:0B:FC:2C:6B:0A:C0:1A:42:31:71
SHA1
48:68:19:65:6F:9A:5A:9F:2D:DF:5F:F5:C2:B4:C3:C9:36:44:64:4A
X509v3 extensions
subjectKeyIdentifier
  • CB:52:86:E8:4B:53:7B:5F:B4:C3:FF:34:3B:73:31:2F:AF:FC:29:7E
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Jul 1 03:12:16.790 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:C1:1A:03:2E:41:49:5A:54:69:E1:98:
  • 47:39:F6:88:A8:41:CA:F1:8E:EF:8F:8A:6F:32:E9:9A:
  • E0:85:6E:0B:75:02:21:00:F5:BC:1C:20:74:E2:D6:A8:
  • 46:FE:4D:12:C2:20:21:8F:ED:F8:6D:59:AB:1C:C8:50:
  • 76:BE:A9:B9:63:3F:26:AB
  • 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 : Jul 1 03:12:16.841 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:4B:D5:65:3B:B0:79:12:77:5E:CC:34:71:
  • 01:09:A9:13:DF:77:25:03:7C:E8:A4:3F:96:30:1C:53:
  • 0F:17:FD:0E:02:21:00:D1:79:0A:66:48:63:49:88:39:
  • 46:C3:ED:6B:1E:4D:02:3D:E4:CF:73:64:38:9A:65:72:
  • 42:5E:FF:2A:3F:D4:D5
First seen at:

CN=mx1.belwue.de

Certificate chain
  • mx1.belwue.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.belwue.de
Alternative Names
  • mail-in02.belwue.de
  • mx1.belwue.de
  • mx2.belwue.de
  • mx3.belwue.de
  • mx4.belwue.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-06-13
Not valid after
2024-09-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
51:5E:83:7E:44:AC:3B:BF:0F:1A:31:86:E2:40:04:07:D6:E8:DF:DE:EB:D1:A9:BA:D2:A0:95:F5:AC:15:A9:E8
SHA1
58:31:BA:90:4A:52:01:D2:BD:1B:B7:44:22:23:B5:E2:6C:95:11:C8
X509v3 extensions
subjectKeyIdentifier
  • 17:C0:51:2F:7A:2D:BC:4C:04:1B:C7:54:4B:24:51:C0:15:BE:42:9C
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.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 : Jun 13 03:11:28.136 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:BE:8D:07:93:B3:22:A8:45:AC:F2:7C:
  • 38:A3:AF:F6:AA:1C:1E:C8:AF:BC:75:A8:BA:00:0A:14:
  • 4B:F3:F2:E7:AF:02:20:0F:9E:10:58:93:74:27:8C:75:
  • 2E:F9:6C:F2:C1:97:DE:54:82:D6:41:2D:91:23:C4:34:
  • A9:42:45:49:C4:2E:5A
  • 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 13 03:11:28.139 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:17:5D:39:D9:FC:F7:8B:4F:B3:A2:7E:76:
  • BE:71:DE:96:83:8A:25:10:73:E3:AF:F1:0B:B7:0F:3E:
  • 48:3D:AF:1F:02:21:00:B4:DA:60:57:E1:27:9D:56:7A:
  • 89:CA:4E:F8:26:BD:D3:AD:13:0A:8E:E7:BE:5A:E6:BF:
  • 70:73:64:C9:3D:5F:3F
First seen at:

CN=mx1.belwue.de

Certificate chain
  • mx1.belwue.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.belwue.de
Alternative Names
  • mail-in01.belwue.de
  • mx1.belwue.de
  • mx2.belwue.de
  • mx3.belwue.de
  • mx4.belwue.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-07-02
Not valid after
2024-09-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4E:4E:29:2F:09:BA:F3:7C:2A:47:94:4F:F5:79:39:35:BA:FB:67:5F:91:76:54:92:C7:44:AF:2C:B8:51:64:BB
SHA1
94:56:A2:1C:45:71:09:77:7D:12:9A:8D:CA:88:52:CC:48:D5:94:F1
X509v3 extensions
subjectKeyIdentifier
  • D4:EA:3D:74:4E:2C:1A:E8:D4:93:B6:67:BE:CE:D9:BB:40:C0:3E:92
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.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 : Jul 2 04:02:42.667 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:6A:C4:F6:27:BB:C4:5B:8A:5A:EF:82:B4:
  • CF:75:7B:00:9C:F0:7B:55:D0:A2:55:AD:37:E9:8B:C2:
  • 0D:5B:1F:29:02:20:50:C1:FC:89:70:FF:C6:D2:9A:DE:
  • C8:8C:38:91:67:CA:0E:EF:0A:68:9A:8E:BE:0D:55:F1:
  • ED:D3:6D:FD:3A:96
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Jul 2 04:02:42.668 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:45:61:B6:9E:F0:32:56:33:69:5D:83:E1:
  • 2F:13:90:81:CB:79:37:DD:34:31:FE:4F:C4:6C:A4:FB:
  • A2:8F:0B:51:02:20:01:AB:64:AD:64:F9:B3:B2:36:FE:
  • CA:2A:F7:9C:0D:09:3C:7B:7C:DD:90:68:F1:CE:CE:CC:
  • 57:D0:D0:22:7F:3A