SSL-Tools

SSL check results of itserverhost.de

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Discover if the mail servers for itserverhost.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

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Report created Tue, 15 Apr 2025 18:41:17 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.itserverhost.de
2a01:239:32e:c100::
 10
supported
itserverhost.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.itserverhost.de
212.227.143.87
 10
supported
itserverhost.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=itserverhost.de

Certificate chain
  • itserverhost.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • itserverhost.de
Alternative Names
  • *.itserverhost.de
  • itserverhost.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-04-03
Not valid after
2025-07-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C7:A5:33:A1:3A:03:C1:87:3A:B2:25:16:0D:FA:DF:59:25:37:A4:3A:01:F8:5D:0C:23:98:05:93:10:CC:FE:1A
SHA1
C3:3D:33:1E:D6:85:04:49:B0:97:25:EF:51:95:1E:E1:A8:F9:C7:F3
X509v3 extensions
subjectKeyIdentifier
  • D5:AB:4C:43:FA:D7:1D:09:85:46:0A:6D:F1:61:B0:78:A1:C2:FC:3B
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/128.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Apr 3 18:31:39.412 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F3:17:9B:F2:C1:A3:1F:EB:20:89:7A:
  • 26:30:AE:8A:E9:F7:21:A0:B9:F8:7D:A9:72:38:04:12:
  • 06:11:08:01:B1:02:21:00:B4:A5:CB:E7:F1:A4:6A:94:
  • 56:03:2D:EB:DC:80:57:42:70:E5:91:53:A5:AB:7C:A2:
  • 71:EE:E8:59:87:BB:F5:3D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
  • 26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
  • Timestamp : Apr 3 18:31:39.413 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:49:90:60:80:14:69:A7:0A:E3:AC:C8:8F:
  • 83:94:74:9B:B4:BF:6D:91:41:44:CF:EB:3F:F0:E9:2B:
  • FC:C9:F4:58:02:21:00:CC:4D:68:A7:48:F7:DE:34:15:
  • 93:5D:45:02:73:85:7E:11:AD:76:AE:4A:CE:4E:74:AC:
  • 38:F6:EA:C0:E5:08:E5

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.mail.itserverhost.de
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid