SSL-Tools

SSL check results of zweiundvierzig.info

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Discover if the mail servers for zweiundvierzig.info 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 Sun, 07 Jun 2026 00:30:45 +0000

We can not guarantee a secure connection to the mailservers of zweiundvierzig.info!

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

/mailservers/zweiundvierzig.info

Servers

Incoming Mails

These servers are responsible for incoming mails to @zweiundvierzig.info addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.zweiundvierzig.info
2a01:238:4298:f400:2d00:f6c3:a2:8d29
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mail.zweiundvierzig.info
85.214.39.242
 10
supported
srv-berlin.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail.srvw.de
2a01:238:4298:f400:2d00:f6c3:a2:8d29
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mail.srvw.de
85.214.39.242
 20
supported
srv-berlin.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=srv-berlin.de

Certificate chain
  • srv-berlin.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • srv-berlin.de
Alternative Names
  • srv-berlin.de
  • srvw.de
  • www.srv-berlin.de
  • www.srvw.de
  • www.zorn-net.de
  • www.zweiundvierzig.info
  • zorn-net.de
  • zweiundvierzig.info
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2026-03-28
Not valid after
2026-06-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
54:74:A8:05:63:DD:93:4C:A5:0B:72:F9:93:B5:22:8C:9C:64:E0:23:7F:B4:09:8B:E2:57:42:19:D8:61:7A:C8
SHA1
76:39:B6:B0:46:78:2C:84:60:3A:4E:5B:68:CB:E7:D9:1D:6A:4E:2D
X509v3 extensions
subjectKeyIdentifier
  • 09:43:0E:28:79:60:D8:BF:D8:C7:1B:87:0D:EE:07:6A:5B:86:2C:49
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/29.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0E:57:94:BC:F3:AE:A9:3E:33:1B:2C:99:07:B3:F7:90:
  • DF:9B:C2:3D:71:32:25:DD:21:A9:25:AC:61:C5:4E:21
  • Timestamp : Mar 28 07:47:33.238 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0F:15:10:91:1F:41:CB:A3:83:36:57:BD:
  • 58:D4:A9:E2:59:DE:EC:D2:A7:40:1D:67:29:A0:B0:02:
  • 41:A1:68:CF:02:20:3D:A8:3A:40:93:4A:0E:21:40:DA:
  • AB:BD:BA:F6:B1:1D:9C:41:33:C1:1A:17:ED:59:24:BC:
  • E3:A0:A2:F5:8B:72
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 71:7E:95:F3:C2:38:8A:6D:B1:E3:84:49:3D:31:E1:5A:
  • A9:62:08:76:2D:42:00:E0:05:0C:D0:67:B5:A6:61:E2
  • Timestamp : Mar 28 07:47:33.407 2026 GMT
  • Extensions: 00:00:05:00:0C:C7:F6:AC
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:53:B4:2E:79:E1:B0:35:0D:9B:92:00:7F:
  • C6:46:7C:6F:3D:48:34:6A:1D:7E:94:7E:5D:28:92:8C:
  • 5D:17:66:23:02:21:00:E6:28:AA:F0:85:E8:94:33:B2:
  • 76:CB:3B:00:F2:F2:9F:16:BA:2A:9A:6A:4A:61:D6:07:
  • 6E:6D:5A:90:5F:48:59