SSL-Tools

SSL check results of poczta.adminbrothers.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for poczta.adminbrothers.com 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, 25 Nov 2022 14:22:27 +0000

The mailservers of poczta.adminbrothers.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @poczta.adminbrothers.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
poczta.adminbrothers.com
157.90.118.63
 -
supported
*.adminbrothers.com
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 @poczta.adminbrothers.com address so far. Test mail delivery

Certificates

First seen at:

CN=*.adminbrothers.com

Certificate chain
  • *.adminbrothers.com
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.adminbrothers.com
Alternative Names
  • *.adminbrothers.com
  • adminbrothers.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2022-10-12
Not valid after
2023-01-10
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
69:97:E3:CF:68:43:F8:D7:FE:44:4B:2D:79:07:DC:81:3E:7B:2D:53:60:B8:7A:F4:DE:52:24:FF:87:B4:1D:11
SHA1
B5:CB:0F:6A:AF:26:75:17:0E:50:4A:12:1B:52:2E:E6:CD:C7:5F:6D
X509v3 extensions
subjectKeyIdentifier
  • CB:15:D1:4D:54:1C:E1:F2:10:20:AA:A5:95:F1:F4:1B:CD:4E:97:8E
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
  • 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 : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
  • 16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
  • Timestamp : Oct 12 22:20:32.621 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:68:FD:5D:2B:6D:95:C0:67:B5:CE:97:8A:
  • 76:73:3A:76:9B:3D:F6:F1:ED:0B:F1:73:2A:47:FB:62:
  • CF:1F:74:92:02:21:00:A3:17:E4:EC:07:39:9E:F1:BA:
  • 08:AB:92:33:18:52:CB:B8:4A:12:E1:8D:CA:0E:B0:A2:
  • 82:D8:D5:AA:CE:4C:3E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
  • 03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
  • Timestamp : Oct 12 22:20:32.611 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8D:AF:F2:AD:96:2E:CB:7F:4D:FB:0B:
  • A4:86:70:F1:13:83:29:42:3A:CD:8F:07:35:BE:77:A7:
  • 04:9B:87:99:38:02:21:00:E9:EF:93:2E:C2:C4:09:33:
  • A6:88:1D:83:B1:C7:78:79:63:D1:DE:5B:AA:F3:5B:58:
  • 30:C4:80:CC:B7:4B:44:17