SSL-Tools

SSL check results of seyfferth.dev

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Discover if the mail servers for seyfferth.dev 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

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Report created Mon, 26 Apr 2021 07:14:39 +0000

The mailservers of seyfferth.dev can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @seyfferth.dev addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.seyfferth.dev
144.91.94.63
 10
supported
mail.seyfferth.dev
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 @seyfferth.dev address so far. Test mail delivery

Certificates

First seen at:

CN=mail.seyfferth.dev

Certificate chain
  • mail.seyfferth.dev
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption
Subject
Common Name (CN)
  • mail.seyfferth.dev
Alternative Names
  • mail.seyfferth.dev
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-04-16
Not valid after
2021-07-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B7:94:FF:E2:50:17:B1:68:69:CE:6A:A3:19:FE:1A:C2:A2:36:F2:21:5B:57:92:A6:61:52:C0:75:DC:AC:DB:7B
SHA1
FD:C3:59:68:AB:74:58:EE:58:9D:EA:60:51:79:60:D9:6A:DC:2A:F3
X509v3 extensions
subjectKeyIdentifier
  • 31:CB:3E:BC:44:90:A2:F2:C8:19:81:B9:E2:30:C6:80:78:AE:DF:BF
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
  • 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 : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
  • D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
  • Timestamp : Apr 16 13:35:03.792 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B6:5B:C5:2C:68:1D:4A:A5:73:0A:B2:
  • 7F:69:90:09:80:8A:E2:68:95:63:8F:02:4D:7D:E8:E1:
  • BF:A9:BE:B6:13:02:20:51:0A:00:08:E5:15:48:3F:4C:
  • D6:A9:9F:8D:66:6A:5B:6F:8B:26:26:8D:DE:DD:42:CE:
  • CE:29:8C:A0:3A:22:01
  • 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 : Apr 16 13:35:03.777 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2D:31:C1:3B:72:8E:74:C7:6F:D5:E7:5E:
  • 3B:D9:39:D6:38:F4:B7:59:71:AD:FB:1B:20:79:93:14:
  • A3:AB:1B:73:02:21:00:A7:1B:B6:39:4F:F8:89:86:AE:
  • 9A:A5:59:3A:F6:68:B2:DA:0B:46:3F:07:47:96:8B:66:
  • B5:8F:ED:0B:05:26:F4