SSL-Tools

SSL check results of silviosiefke.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for silviosiefke.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 Tue, 08 Jul 2025 00:30:08 +0000

We can not guarantee a secure connection to the mailservers of silviosiefke.com!

Please contact the operator of silviosiefke.com and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/silviosiefke.com

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
finnland.sisi-systems.ovh
2a01:4f9:c011:acb7::1
 10
supported
finnland.sisi-systems.ovh
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
10 s
finnland.sisi-systems.ovh
65.21.6.221
 10
supported
finnland.sisi-systems.ovh
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s
west-na.sisi-systems.ovh
2a01:4ff:1f0:ccb3::1
Results incomplete
20 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
west-na.sisi-systems.ovh
5.78.44.220
Results incomplete
20
unsupported
not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
7 s

Outgoing Mails

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

Certificates

First seen at:

CN=finnland.sisi-systems.ovh

Certificate chain
  • finnland.sisi-systems.ovh
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • finnland.sisi-systems.ovh
Alternative Names
  • finnland.sisi-systems.ovh
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-06-21
Not valid after
2025-09-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
10:19:74:E6:EA:8A:3E:EA:7E:69:93:17:84:79:0C:3D:43:89:10:E1:E9:95:2D:E3:D5:B8:6E:59:FB:C8:99:12
SHA1
86:2B:A3:3E:7B:43:A1:0B:39:68:A2:53:BD:8E:E9:07:6E:CA:08:31
X509v3 extensions
subjectKeyIdentifier
  • B7:E3:FB:DC:8D:48:B8:DA:96:9E:AF:B3:9A:11:8F:1A:D4:27:BC:7D
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/64.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : Jun 21 07:33:18.400 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A4:00:2A:07:4C:D7:C1:0E:58:85:66:
  • BA:6F:F9:AB:F7:EB:3D:55:66:2A:6A:7E:61:AF:2E:A5:
  • CE:12:F9:D9:BC:02:21:00:F2:E5:D8:BF:55:B1:75:44:
  • 86:79:3F:EF:9D:CB:53:D4:FF:94:CB:AC:AD:94:A5:2A:
  • A5:3E:97:AD:D4:FE:72:93
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jun 21 07:33:18.593 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:34:77:FE:A6:DA:4C:31:DF:79:38:B6:4C:
  • B6:42:25:82:0F:70:11:9E:08:59:F3:51:BF:DF:AC:50:
  • 31:34:E8:60:02:20:00:B1:9A:93:38:59:97:B4:93:26:
  • 90:68:F8:22:2D:AF:9B:56:C5:9E:35:8A:C1:C9:5F:07:
  • 5E:44:E1:E7:25:3D

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.west-na.sisi-systems.ovh
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
—
_25._tcp.finnland.sisi-systems.ovh
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid