SSL-Tools

SSL check results of smtp03.softtech.nl

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Discover if the mail servers for smtp03.softtech.nl 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 Mon, 25 May 2020 16:26:59 +0000

The mailservers of smtp03.softtech.nl can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp03.softtech.nl addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp03.softtech.nl
87.253.152.4
 -
supported
smtp03.softtech.nl
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 @smtp03.softtech.nl address so far. Test mail delivery

Certificates

First seen at:

CN=smtp03.softtech.nl

Certificate chain
Subject
Common Name (CN)
  • smtp03.softtech.nl
Alternative Names
  • smtp03.softtech.nl
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-22
Not valid after
2020-08-20
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
16:F1:38:41:46:B9:4B:0D:4A:E2:35:8D:A2:34:0A:20:EB:05:32:27:31:17:13:FF:8D:C5:96:C5:57:A3:69:84
SHA1
46:8E:9F:27:03:E3:D6:A4:1A:CC:17:02:A8:0D:75:D0:8C:AD:92:BD
X509v3 extensions
subjectKeyIdentifier
  • 55:43:07:F1:CB:EC:31:15:C1:1C:65:68:6C:6E:5C:56:7E:60:52:7D
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 22 12:00:06.393 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:18:E1:D7:8B:53:79:FD:3D:49:59:43:1B:
  • F3:ED:09:F9:83:70:45:91:0F:E3:AD:CD:84:5D:60:AD:
  • 1D:BF:88:1C:02:21:00:C9:48:EB:27:48:71:01:4F:C0:
  • C1:47:E7:D2:97:E9:7D:BC:54:9B:1B:A6:A8:3D:8F:0B:
  • 7E:C1:FF:C8:E4:C6:1A
  • 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 22 12:00:06.443 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:18:D6:E0:41:A1:51:D4:8C:40:8D:EB:12:
  • F9:C3:C6:E0:C4:6D:D8:36:10:A3:73:03:16:EF:5B:EB:
  • F0:60:11:25:02:21:00:EB:16:6E:47:B2:18:7E:57:30:
  • 4F:5F:E6:3E:25:CE:28:85:95:85:85:2D:60:98:0C:BD:
  • DD:3C:1A:ED:A4:BA:33