SSL check results of netfire21.de

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Discover if the mail servers for netfire21.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, 25 Oct 2020 19:42:51 +0000

The mailservers of netfire21.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @netfire21.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
server1.semtex-host.de
2a03:4000:46:57::1
10
supported
server1.semtex-host.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
server1.semtex-host.de
45.83.106.136
10
supported
server1.semtex-host.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @netfire21.de sender addresses. Test mail delivery

Host TLS Version & Cipher
server1.semtex-host.de (IPv6:2a03:4000:46:57::1)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=server1.semtex-host.de

Certificate chain
Subject
Common Name (CN)
  • server1.semtex-host.de
Alternative Names
  • server1.semtex-host.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-10-19
Not valid after
2021-01-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BC:52:7A:5C:C4:C8:08:0E:F2:AC:0A:F9:A2:A5:E9:0D:D0:88:9A:44:2C:9D:5C:05:12:32:8B:1F:DB:2A:16:5D
SHA1
6D:A7:D5:B4:6B:48:76:E4:CF:A6:5F:64:A9:16:33:52:38:7F:52:43
X509v3 extensions
subjectKeyIdentifier
  • B8:2F:6E:E5:35:15:43:0C:A8:9C:D0:53:9E:42:A2:2C:7D:AA:1C:D9
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 : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
  • 37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
  • Timestamp : Oct 19 18:15:41.397 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:70:EC:C2:D3:D2:ED:E4:6A:40:15:E4:0F:
  • 81:55:74:43:1F:24:48:9C:62:A8:41:4C:B9:6F:F9:FA:
  • 3A:3D:EE:1C:02:20:49:0C:E4:CD:E1:EA:43:FC:95:24:
  • 0B:A6:8B:FB:BD:20:36:AC:3F:42:13:DD:42:C6:B5:E4:
  • D7:23:59:70:D9:85
  • 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 : Oct 19 18:15:41.896 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D5:5B:E6:71:27:89:4C:95:EA:CD:37:
  • 51:72:60:67:95:AF:45:EF:6A:B5:F7:A6:FB:FB:1E:B7:
  • 46:68:87:03:F0:02:20:73:67:C4:EE:5C:6D:39:E1:9D:
  • B6:12:58:88:36:7F:51:61:01:FD:18:90:B7:EE:DE:9F:
  • 4A:91:C9:34:AA:8D:FB