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SSL check results of utm-01.michael-thumann.de

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Discover if the mail servers for utm-01.michael-thumann.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 Sat, 26 Sep 2020 16:11:42 +0000

The mailservers of utm-01.michael-thumann.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @utm-01.michael-thumann.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
utm-01.michael-thumann.de
185.248.142.25
 -
supported
utm-01.michael-thumann.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @utm-01.michael-thumann.de address so far. Test mail delivery

Certificates

First seen at:

CN=utm-01.michael-thumann.de

Certificate chain
Subject
Common Name (CN)
  • utm-01.michael-thumann.de
Alternative Names
  • utm-01.michael-thumann.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-08-05
Not valid after
2020-11-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
97:4E:69:AE:E7:C4:E5:07:B0:D7:D6:FF:6C:C2:68:B0:A2:E5:41:45:1A:07:32:3A:10:77:64:4D:77:C1:20:ED
SHA1
18:F0:BD:7B:13:E3:E9:61:98:74:A9:89:5D:3F:5E:C9:85:BB:A4:A0
X509v3 extensions
subjectKeyIdentifier
  • 93:8B:6A:3E:87:47:28:6B:3D:BA:A9:E5:F7:96:23:50:51:12:20:15
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 : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Aug 5 03:19:54.334 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:10:63:A7:5C:F0:3E:CB:A9:0B:B5:88:B1:
  • 7A:21:F2:26:61:D6:66:CD:77:3F:E6:25:A5:8B:FC:AF:
  • FB:C6:7C:87:02:21:00:FB:A3:AA:92:3F:89:CF:29:E4:
  • 73:EB:A8:76:A9:17:4E:24:F4:90:B3:0F:B7:D2:C9:23:
  • 81:E0:DA:F5:8E:4C:D6
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Aug 5 03:19:54.310 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:60:15:D1:EC:66:9F:48:6E:C8:F7:CB:A5:
  • 22:53:D6:43:C4:F2:18:1E:71:34:D9:9F:21:99:68:BA:
  • A2:39:AB:82:02:20:50:25:6E:50:DA:ED:8A:1B:7A:9E:
  • 13:EE:42:D5:71:82:5C:0E:D4:DF:46:02:CF:98:E6:CE:
  • B5:8C:B8:4D:22:16