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

Report created Sat, 21 Nov 2020 23:54:50 +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
2a02:c207:3004:5026::1
10
supported
mail.seyfferth.dev
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
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
7 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
Subject
Common Name (CN)
  • mail.seyfferth.dev
Alternative Names
  • mail.seyfferth.dev
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-11-03
Not valid after
2021-02-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3C:DF:E4:02:61:E4:E6:13:48:81:94:B4:80:D2:72:22:4E:71:EC:59:56:CF:04:AD:D8:BA:C9:03:67:19:00:CA
SHA1
A4:FE:CB:CF:A6:D2:A1:12:BE:54:83:3C:64:30:FA:87:B8:99:EC:34
X509v3 extensions
subjectKeyIdentifier
  • 0C:16:52:7E:95:F4:72:0F:D7:F6:4B:BD:E6:7B:30:E0:FD:49:50: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 : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Nov 3 13:46:07.391 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:96:54:F5:D0:6A:9A:F9:C5:87:4D:F6:
  • 4A:90:25:14:2C:46:5E:FA:63:88:4A:AF:75:9A:06:21:
  • CE:18:CF:9D:AD:02:20:6A:44:BE:8C:04:A7:61:BA:A0:
  • 4C:A6:E6:2A:D3:2D:19:C4:F7:9A:3C:89:B3:C6:FB:BB:
  • D7:1A:7A:5C:93:1E:EC
  • 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 : Nov 3 13:46:07.361 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:09:56:DB:AD:5C:78:7F:A5:87:25:0F:9F:
  • AB:61:BD:3E:9A:0A:7D:0E:2D:98:B8:E3:1B:C8:11:59:
  • 6D:EC:7C:2F:02:20:63:66:A6:AE:CE:F6:A3:84:6C:EE:
  • 13:BD:35:23:3A:EC:96:6B:0D:43:6E:DB:A8:50:17:79:
  • 97:C3:9B:30:BE:DF