SSL check results of mail.alc-group.de

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Discover if the mail servers for mail.alc-group.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 Fri, 21 Feb 2020 20:32:03 +0000

The mailservers of mail.alc-group.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.alc-group.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.alc-group.de
24.134.100.33
-
supported
mail.alc-group.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.alc-group.de

Certificate chain
Subject
Common Name (CN)
  • mail.alc-group.de
Alternative Names
  • mail.alc-group.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-02-21
Not valid after
2020-05-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
52:B1:E9:C2:DC:A3:3B:96:44:4B:C1:AA:97:58:22:05:36:69:DA:A3:88:C0:B4:68:53:AF:C5:6F:97:FB:CF:83
SHA1
E8:AA:56:81:C5:8D:D1:CD:9C:38:85:40:B4:B9:4A:EA:F2:00:86:E8
X509v3 extensions
subjectKeyIdentifier
  • 1B:C9:4A:03:8F:A4:2F:04:4A:42:03:7D:81:8B:6C:DF:08:2B:63:E8
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 : 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 : Feb 21 20:26:02.471 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:01:DE:A4:0F:2F:97:3D:CC:80:04:EA:FE:
  • A7:9C:C6:CE:14:80:1A:F4:EF:27:77:29:65:54:FA:44:
  • DE:98:97:9E:02:21:00:D5:A2:BF:B7:D3:EA:61:59:50:
  • 2A:72:4D:90:42:6A:06:72:E1:CA:02:E5:50:25:0B:BD:
  • 6F:8C:AE:1C:07:D7:A6
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Feb 21 20:26:02.564 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:AD:D5:06:1E:12:A7:CB:3F:E6:33:2D:
  • A5:0F:65:A4:50:EF:3F:A3:2D:71:B7:28:06:95:49:F1:
  • C7:E7:BF:17:99:02:20:5A:DD:3D:D9:3E:21:21:2D:8E:
  • C7:B1:09:9D:69:2D:2E:F1:7E:22:32:02:1A:30:82:02:
  • D4:C3:E2:BC:7D:BB:29