SSL-Tools

SSL check results of dismail.de

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Discover if the mail servers for dismail.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 Wed, 10 Jan 2024 14:58:58 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.dismail.de
2a01:4f8:c17:e5e::2
 10
supported
mx1.dismail.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s
mx1.dismail.de
78.46.223.134
 10
supported
mx1.dismail.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx2.dismail.de
2a01:4f8:1c17:7be2::2
 10
supported
mx2.dismail.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx2.dismail.de
159.69.191.136
 10
supported
mx2.dismail.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @dismail.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mx2.dismail.de (159.69.191.136)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=mx1.dismail.de

Certificate chain
  • mx1.dismail.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.dismail.de
Alternative Names
  • mx1.dismail.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-01-08
Not valid after
2024-04-07
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D0:62:83:46:DB:CE:37:28:2D:8F:2B:CD:59:52:89:D8:56:3C:5B:36:90:29:54:79:95:46:2F:5F:E8:6E:7A:F4
SHA1
12:0A:E3:53:A6:9E:11:9F:BB:4E:0D:73:FB:13:0D:3A:38:C2:EA:33
X509v3 extensions
subjectKeyIdentifier
  • A3:A6:1D:40:0F:BD:46:96:D0:86:59:F3:47:A3:AF:0C:95:B7:50:D4
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
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Jan 8 09:18:18.508 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:50:E2:97:20:68:A1:EC:F9:4E:D5:7A:A6:
  • FB:AB:DC:2D:33:27:F9:8D:68:DD:50:1A:82:F3:7B:82:
  • 68:C8:AF:6B:02:20:2A:E1:19:73:8C:C3:D7:9E:92:A0:
  • 19:96:92:02:36:08:23:F1:A8:00:4B:FF:FA:68:86:DB:
  • AC:99:03:8C:8F:35
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Jan 8 09:18:18.997 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:60:78:DE:35:3A:50:AA:5A:DA:6B:28:21:
  • A4:A9:1C:FA:50:81:66:44:A7:25:00:64:D8:CA:5D:4C:
  • 0F:45:44:96:02:20:46:BC:73:98:A6:9C:45:6D:EA:6B:
  • FC:B5:05:2E:13:FE:CC:D4:BD:97:E7:61:33:02:53:DC:
  • 21:38:18:88:2F:71
First seen at:

CN=mx2.dismail.de

Certificate chain
  • mx2.dismail.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx2.dismail.de
Alternative Names
  • mx2.dismail.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2023-11-02
Not valid after
2024-01-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4C:5C:B3:F7:32:D0:67:3D:03:57:08:0F:A3:48:81:51:7E:D6:00:BD:48:2E:BD:80:32:CC:4D:0F:7D:F4:F6:89
SHA1
D7:F9:86:C4:07:83:D5:B1:8D:F7:28:4E:86:E9:72:89:64:13:08:F3
X509v3 extensions
subjectKeyIdentifier
  • 8A:23:31:6D:FA:8D:86:55:1C:68:17:1D:CC:8E:81:00:E5:4B:78:3E
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
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Nov 2 17:14:31.868 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:CD:48:3C:66:E0:7A:13:D1:6D:55:6A:
  • A1:A8:FF:8B:F0:9D:88:A1:6D:71:98:D6:F2:4E:C0:FC:
  • BF:7F:86:D4:B4:02:20:6C:F9:1B:86:81:94:30:B9:19:
  • 13:08:A8:5A:1A:AE:8E:82:A6:5E:08:62:F2:EE:06:07:
  • 6A:A2:0B:C5:FB:CF:24
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3B:53:77:75:3E:2D:B9:80:4E:8B:30:5B:06:FE:40:3B:
  • 67:D8:4F:C3:F4:C7:BD:00:0D:2D:72:6F:E1:FA:D4:17
  • Timestamp : Nov 2 17:14:32.297 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:FB:69:34:AD:97:15:B8:89:D2:3A:51:
  • E1:74:41:68:EC:A1:0C:20:79:15:01:47:31:2A:09:53:
  • F3:A9:4A:F7:24:02:20:2E:1F:29:4B:70:59:74:A9:F5:
  • D1:A7:3D:A4:2B:03:CF:3F:F8:79:DE:6F:B9:14:40:2A:
  • E5:48:E6:7C:E5:A7:01

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.dismail.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mx2.dismail.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid