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SSL check results of it-mundb.de

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Discover if the mail servers for it-mundb.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 Fri, 29 Aug 2025 19:31:10 +0000

The mailservers of it-mundb.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @it-mundb.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx01.it-mundb.de
109.90.221.98
 10
supported
mx01.it-mundb.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx01.it-mundb.de

Certificate chain
  • mx01.it-mundb.de
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E6
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx01.it-mundb.de
Alternative Names
  • autoconfig.it-mundb.de
  • autodiscover.it-mundb.de
  • mx01.it-mundb.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E6
validity period
Not valid before
2025-07-28
Not valid after
2025-10-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BD:47:8F:09:40:86:69:12:74:E4:2E:AD:D0:3A:F7:8E:AC:30:AF:D9:E9:CB:19:A8:4C:00:35:34:DA:69:2F:7F
SHA1
AA:3F:65:2A:39:10:D0:09:2D:A7:65:56:B5:39:1A:0F:4A:0F:47:55
X509v3 extensions
subjectKeyIdentifier
  • 6F:2D:88:03:D6:71:1A:FD:68:0E:55:62:97:8A:9A:76:51:95:C5:1E
authorityKeyIdentifier
  • keyid:93:27:46:98:03:A9:51:68:8E:98:D6:C4:42:48:DB:23:BF:58:94:D2
authorityInfoAccess
  • CA Issuers - URI:http://e6.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e6.c.lencr.org/102.crl
ct_precert_scts
  • 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 : Jul 28 15:51:30.304 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2A:DA:D5:E5:61:6C:B0:43:03:6E:D4:D7:
  • EA:AB:03:C6:8A:B6:1A:1C:82:B1:94:B6:4D:99:6A:A3:
  • 6F:3C:41:02:02:21:00:BC:64:70:35:D9:08:BC:4B:71:
  • 1C:A2:B7:D7:7F:19:AD:E0:52:6B:26:15:84:EE:83:60:
  • 60:5D:03:B7:6B:56:96
  • 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 : Jul 28 15:51:30.286 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:34:B0:03:18:C7:7F:18:11:78:00:F5:43:
  • 13:D0:96:14:86:C7:8F:B7:3C:08:B1:B1:11:6E:EE:E3:
  • 1E:86:D1:1B:02:21:00:CA:17:1A:16:0F:6D:CE:B2:97:
  • 2B:A0:6D:83:82:C8:F9:BD:56:6A:1B:35:29:A2:E4:9D:
  • B9:18:76:B6:EA:DB:AA