SSL check results of danner-it.de

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Discover if the mail servers for danner-it.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

Report created Sun, 14 Feb 2021 00:39:59 +0000

The mailservers of danner-it.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @danner-it.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail2.danner-it.de
217.6.217.74
8
supported
mail2.danner-it.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s
mail.danner-it.de
195.4.131.203
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail2.danner-it.de

Certificate chain
  • mail2.danner-it.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption

Subject
Common Name (CN)
  • mail2.danner-it.de
Alternative Names
  • mail2.danner-it.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-01-31
Not valid after
2021-05-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
F4:0F:91:E2:BA:FB:B5:50:F8:E4:D7:76:8A:12:42:9D:6A:CC:C1:63:F7:EA:35:35:EE:57:64:30:E5:F4:5F:01
SHA1
9D:79:C7:56:91:A8:2C:14:0B:5E:C8:12:F4:21:6B:5B:02:7A:CB:66
X509v3 extensions
subjectKeyIdentifier
  • D3:F4:87:2F:3F:55:3B:3E:EB:BE:E4:87:59:70:48:F5:7E:C8:C1:F9
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 : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Jan 31 01:55:43.859 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:65:0E:E4:14:D9:25:59:F8:8B:B0:66:1C:
  • 3C:FE:9E:C6:66:94:FB:AF:87:71:F5:98:74:C5:01:B4:
  • F6:7B:86:21:02:21:00:80:C7:5F:DA:66:08:64:88:A4:
  • A2:70:0C:38:70:58:7D:7B:BE:3E:33:69:0D:AF:85:DE:
  • 57:D9:09:EF:67:84:DE
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Jan 31 01:55:43.855 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:98:19:6D:CA:28:94:60:00:CC:45:93:
  • E1:BF:B8:A4:E2:B6:36:9D:23:87:83:CB:2B:2A:88:4F:
  • 0C:72:E2:22:9F:02:20:71:24:B3:1B:C8:ED:74:AD:F9:
  • 62:4A:DB:F6:D1:C6:72:00:17:E8:3D:59:0F:CE:8A:91:
  • 5D:7D:78:99:6C:40:1E