SSL-Tools

SSL check results of mail.develbro.com

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Discover if the mail servers for mail.develbro.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

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Report created Thu, 18 Apr 2024 18:11:08 +0000

The mailservers of mail.develbro.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.develbro.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.develbro.com
95.31.211.17
 -
supported
mail.develbro.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
10 s

Outgoing Mails

We have not received any emails from a @mail.develbro.com address so far. Test mail delivery

Certificates

First seen at:

CN=mail.develbro.com

Certificate chain
  • mail.develbro.com
    • remaining
    • 256 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.develbro.com
Alternative Names
  • mail.develbro.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-18
Not valid after
2024-07-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
AD:0C:44:97:17:47:43:FD:F5:17:A3:3C:09:90:7D:D8:79:0F:FE:64:4D:47:72:5E:03:23:F4:CC:7D:65:17:5C
SHA1
4C:0A:0D:65:5D:BB:6F:83:76:D9:EA:1B:01:E7:66:E5:00:A7:38:87
X509v3 extensions
subjectKeyIdentifier
  • 01:50:95:50:F1:B4:D8:80:71:1B:E2:3C:13:78:28:22:44:2C:86:31
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 : 3B:53:77:75:3E:2D:B9:80:4E:8B:30:5B:06:FE:40:3B:
  • 67:D8:4F:C3:F4:C7:BD:00:0D:2D:72:6F:E1:FA:D4:17
  • Timestamp : Apr 18 08:32:54.242 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:38:9E:89:B2:75:70:25:E0:DB:4C:6D:1A:
  • 42:E6:2B:46:03:92:73:09:4E:7C:A8:E9:81:BA:BE:C2:
  • 62:78:69:29:02:20:25:26:16:5B:84:87:F9:40:A0:C5:
  • CC:34:E2:86:86:D7:27:1E:3E:C3:A6:24:D6:7C:A2:8A:
  • 01:A9:F5:A6:89:79
  • 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 : Apr 18 08:32:54.252 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:23:B9:ED:B5:46:DD:4D:A9:CF:3E:0E:93:
  • A5:E1:36:19:50:55:C0:74:0D:CB:6E:24:3A:AC:F1:C0:
  • 5C:2F:F3:C3:02:21:00:C8:0B:09:39:FA:B8:F1:4B:A6:
  • 42:36:BC:8E:11:F0:64:0B:37:5F:7A:FE:28:2A:4C:B0:
  • 58:76:FC:2A:76:B2:01