SSL-Tools

SSL check results of xrstf.de

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Discover if the mail servers for xrstf.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 Tue, 26 May 2020 10:21:42 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
xrstf.de
195.201.123.225
 10
supported
xrstf.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=xrstf.de

Certificate chain
  • xrstf.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
Subject
Common Name (CN)
  • xrstf.de
Alternative Names
  • christoph-mewes.de
  • cloud.xrstf.de
  • docs.xrstf.de
  • feeds.xrstf.de
  • h.xrstf.de
  • inbox.xrstf.de
  • mail.xrstf.de
  • monitor.xrstf.de
  • post.xrstf.de
  • sdv.xrstf.de
  • sensors.xrstf.de
  • shiori.xrstf.de
  • www.christoph-mewes.de
  • www.xrstf.de
  • xrstf.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-02
Not valid after
2020-07-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
CE:21:70:21:47:DB:D1:97:9F:5A:35:26:E2:05:DB:6F:F7:28:05:46:27:A9:AF:10:15:B9:11:54:D7:DA:79:50
SHA1
BD:E3:01:E6:85:F6:55:82:25:B6:68:3F:D7:B6:DF:EB:2E:E6:A2:6C
X509v3 extensions
subjectKeyIdentifier
  • 91:13:A4:51:38:7A:19:16:7E:74:07:47:AF:5D:72:78:B5:48:B3:A9
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : May 2 21:07:13.669 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:FF:76:89:B7:43:0B:1D:82:6D:58:B8:
  • FF:A2:FF:DD:54:3A:F2:7D:03:8E:47:17:5D:18:F6:83:
  • FF:88:90:B5:78:02:21:00:A3:C3:8B:39:D7:B0:03:50:
  • E0:A6:49:0D:18:EC:47:98:74:D2:A4:92:D7:1A:07:14:
  • C9:D4:9F:8E:6B:D8:BC:1F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : May 2 21:07:13.713 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:01:E4:CB:2A:80:11:93:FF:CC:71:6F:13:
  • 46:8A:CC:7B:26:48:01:5E:BD:10:1A:98:4D:A2:5C:08:
  • 33:2A:36:BC:02:21:00:B4:74:F0:93:D7:2E:F2:A1:0E:
  • 58:02:5E:FB:B9:6E:90:26:E4:21:81:B2:A2:84:1D:D3:
  • B3:48:77:51:6F:0B:32