SSL-Tools

SSL check results of butom.de

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Discover if the mail servers for butom.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 Fri, 07 Feb 2025 01:31:27 +0000

We can not guarantee a secure connection to the mailservers of butom.de!

Please contact the operator of butom.de and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/butom.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
web.butom.de
2a0a:4cc0:0:2276::1
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
web.butom.de
152.53.45.105
 10
supported
web.butom.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.butom.de
2a0a:4cc0:0:2276::1
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mail.butom.de
152.53.45.105
 20
supported
web.butom.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=web.butom.de

Certificate chain
  • web.butom.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • web.butom.de
Alternative Names
  • web.butom.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-01-29
Not valid after
2025-04-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
86:D1:1C:78:4F:B6:53:84:AA:F7:0E:39:01:B8:70:7D:6C:0A:3F:25:D7:3C:96:70:51:77:4F:53:8A:39:92:E1
SHA1
B6:6C:96:50:C5:53:C8:7C:01:37:F9:7C:77:51:43:0D:7D:8D:46:5F
X509v3 extensions
subjectKeyIdentifier
  • 97:9D:D9:D6:FF:A1:EF:76:FE:B9:31:5C:D3:29:D9:67:DA:21:81:D5
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 : E0:92:B3:FC:0C:1D:C8:E7:68:36:1F:DE:61:B9:96:4D:
  • 0A:52:78:19:8A:72:D6:72:C4:B0:4D:A5:6D:6F:54:04
  • Timestamp : Jan 29 23:01:31.290 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:EF:BB:6B:44:97:E2:5B:8A:39:06:58:
  • 54:DB:8D:53:B6:3D:DC:B9:25:B1:95:71:8D:BF:56:28:
  • D2:58:E0:17:ED:02:21:00:A0:96:3C:43:15:4D:26:B9:
  • CC:37:56:CC:E9:82:B4:7C:8C:0E:5D:4E:C9:2F:95:EC:
  • 22:F7:0F:54:6C:55:FC:73
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Jan 29 23:01:31.290 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:66:AF:53:E9:4C:F5:A0:53:F6:F8:8F:2F:
  • 0B:DA:75:50:63:84:32:27:BE:08:32:6F:7D:8F:3A:22:
  • 15:C3:11:07:02:21:00:A1:32:75:8B:35:8D:AE:55:B4:
  • EB:1E:36:7A:27:8E:53:66:9D:C3:CF:BB:72:E7:5F:71:
  • 82:AD:9B:19:E0:16:44