SSL-Tools

SSL check results of mastarin.com

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Discover if the mail servers for mastarin.com 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 Fri, 19 Apr 2024 21:54:28 +0000

The mailservers of mastarin.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mastarin.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.mastarin.com
152.67.82.5
 1
supported
smtp.mastarin.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=smtp.mastarin.com

Certificate chain
  • smtp.mastarin.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • smtp.mastarin.com
Alternative Names
  • smtp.mastarin.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-19
Not valid after
2024-07-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
01:EE:23:92:9E:D8:01:F6:F9:01:E0:00:DF:C4:FE:9E:7F:C0:BB:8F:86:59:05:2F:F7:2C:46:C9:24:99:D8:5E
SHA1
8E:54:29:3B:AD:BF:28:C0:46:77:B3:F0:C3:AE:98:5E:C9:76:8F:D1
X509v3 extensions
subjectKeyIdentifier
  • 24:A4:42:9E:A8:F8:7B:94:6A:1B:82:DA:3F:32:39:D4:CE:D9:7A:39
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Apr 19 21:53:08.577 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:40:AF:1C:54:D2:CE:7E:8A:87:AC:3C:4D:
  • 2A:6B:2B:BE:BB:A1:7D:86:5C:37:75:2B:61:CB:56:34:
  • 83:D6:F6:6F:02:20:12:83:33:54:AD:3A:D4:CB:5E:B9:
  • 09:27:C0:8D:44:76:BF:A3:B3:36:C6:86:C6:5B:B9:AD:
  • BD:A5:9B:C7:F9:87
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:98:10:71:09:F0:D6:52:2E:30:80:D2:9E:3F:64:BB:
  • 83:6E:28:CC:F9:0F:52:8E:EE:DF:CE:4A:3F:16:B4:CA
  • Timestamp : Apr 19 21:53:08.639 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2B:7D:DC:D9:F9:5B:DC:33:20:29:7D:3F:
  • 38:95:36:00:2E:00:FA:C3:13:3C:5B:AF:D4:1B:11:BC:
  • ED:64:71:E5:02:21:00:F4:41:36:7E:DB:49:25:7E:CE:
  • 0C:BB:C6:0E:05:5E:5D:F3:94:AF:12:BE:7D:CD:03:32:
  • E9:05:DF:79:3A:97:BA

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.smtp.mastarin.com
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.smtp.mastarin.com
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid