SSL-Tools

SSL check results of intersaar.de

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Discover if the mail servers for intersaar.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, 14 Mar 2023 13:55:50 +0000

We can not guarantee a secure connection to the mailservers of intersaar.de!

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

/mailservers/intersaar.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.intersaar.de
2a02:430::1:21:2
Results incomplete
1
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mx1.intersaar.de
213.135.15.238
 1
supported
*.intersaar.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
mx2.intersaar.de
2a02:430::1:22:2
Results incomplete
1
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mx2.intersaar.de
213.135.11.106
 1
supported
*.intersaar.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.intersaar.de

Certificate chain
  • *.intersaar.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.intersaar.de
Alternative Names
  • *.intersaar.de
  • intersaar.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2023-03-08
Not valid after
2023-06-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
52:09:CB:5C:84:A4:89:24:60:2D:07:18:CD:C1:03:C0:5F:BE:B3:C4:A0:A1:21:33:43:2F:CC:BA:7B:5B:F1:C1
SHA1
3A:9C:5D:94:96:09:13:48:80:0B:D3:11:A9:E6:47:5D:31:D0:14:11
X509v3 extensions
subjectKeyIdentifier
  • 0C:A1:C0:35:80:F4:F8:3C:91:2B:1F:7E:B1:C7:40:0C:0E:AC:C8:10
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B7:3E:FB:24:DF:9C:4D:BA:75:F2:39:C5:BA:58:F4:6C:
  • 5D:FC:42:CF:7A:9F:35:C4:9E:1D:09:81:25:ED:B4:99
  • Timestamp : Mar 8 02:18:15.211 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F4:E8:6D:88:D7:DB:67:BA:78:D7:B1:
  • DE:DE:27:8E:DC:D5:27:08:DE:AA:D2:DB:B5:31:53:22:
  • 53:55:3E:CD:CF:02:20:4F:01:9C:CF:74:55:0F:C8:DD:
  • D6:01:5C:FC:83:C9:FB:2A:5D:33:8F:76:31:9F:0A:F8:
  • EC:33:19:1D:B3:B5:43
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
  • 03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
  • Timestamp : Mar 8 02:18:15.201 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B8:53:BC:82:C6:CA:1E:E8:1D:4A:6B:
  • 9F:F8:58:C3:F4:19:77:E1:4D:21:16:90:F4:01:C0:83:
  • 01:FC:32:82:11:02:20:74:08:29:37:6A:16:ED:17:E8:
  • B5:45:8C:2C:58:D7:CD:B6:3F:8A:E8:01:76:9A:80:5D:
  • B8:A5:FC:23:93:CE:0D