SSL-Tools

SSL check results of matsta.de

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Discover if the mail servers for matsta.de 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, 09 Sep 2025 12:26:08 +0000

The mailservers of matsta.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @matsta.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.matsta.de
2a03:4000:23:595:342c:36ff:fe08:3cfb
 1
supported
mx1.matsta.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s
mx1.matsta.de
185.228.139.204
 1
supported
mx1.matsta.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
6 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx1.matsta.de

Certificate chain
  • mx1.matsta.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.matsta.de
Alternative Names
  • mail.matsta.ovh
  • mx1.matsta.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-08-01
Not valid after
2025-10-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D0:46:5B:D8:5F:C8:3E:A5:D8:14:8F:56:31:D8:4E:AC:B6:BD:A2:AE:DE:78:47:81:B9:D5:BF:8D:76:18:0E:49
SHA1
B8:A4:5D:9D:12:AF:95:A2:E8:AC:D0:55:42:A3:C9:3B:BC:A6:F3:3F
X509v3 extensions
subjectKeyIdentifier
  • 65:1C:10:B4:17:2D:C2:5F:0D:31:DA:26:24:A2:67:AC:65:2E:98:FD
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/8.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : ED:3C:4B:D6:E8:06:C2:A4:A2:00:57:DB:CB:24:E2:38:
  • 01:DF:51:2F:ED:C4:86:C5:70:0F:20:DD:B7:3E:3F:E0
  • Timestamp : Aug 1 01:10:22.507 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8C:5A:34:B4:50:C3:19:EC:3F:80:BE:
  • 4A:2C:97:82:BA:82:45:C8:51:44:69:42:8F:A2:71:0E:
  • 9C:B6:6A:76:23:02:20:24:0E:41:DB:D4:7A:1D:64:E9:
  • 2D:B5:B5:47:5D:E9:FC:C0:C4:80:9B:A4:9B:B3:33:0D:
  • 29:E2:3C:EE:67:AE:CA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:04:FF:49:D0:54:1D:40:AF:F6:A0:C3:BF:F1:D8:C4:
  • 67:2F:4E:EC:EE:23:40:68:98:6B:17:40:2E:DC:89:7D
  • Timestamp : Aug 1 01:10:22.548 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:12:BD:3B:FD:54:07:7D:73:83:74:BB:9E:
  • 91:FE:3A:2E:F6:E1:1B:96:98:BC:AB:AF:F4:B4:38:55:
  • E5:A4:98:EF:02:21:00:92:C6:EA:BA:25:0F:5F:34:A0:
  • BF:6B:59:EB:08:28:07:8D:E5:27:87:E7:25:FE:7A:73:
  • 23:0E:09:8F:D9:F5:08

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.mx1.matsta.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
error
Debug
valid