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

Report created Fri, 20 Nov 2020 00:23:51 +0000

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

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

/mailservers/dismail.de

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
  • TLSv1.1
  • TLSv1.0
  • SSLv3
4 s
mx1.dismail.de
78.46.223.134
Results incomplete
10
unsupported
not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
19 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
  • TLSv1.1
  • TLSv1.0
  • SSLv3
4 s
mx2.dismail.de
159.69.191.136
Results incomplete
10
unsupported
not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
19 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
Subject
Common Name (CN)
  • mx1.dismail.de
Alternative Names
  • mx1.dismail.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-09-24
Not valid after
2020-12-23
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4E:3C:4C:8F:A0:88:85:B8:4B:4E:E9:B3:EB:24:9D:92:20:86:A3:66:8C:FA:FA:90:4C:C6:FC:F9:E7:BB:45:D5
SHA1
00:26:EA:A6:BE:29:7C:85:C9:1B:13:4C:4D:B4:16:3C:CB:27:5C:83
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:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Sep 24 17:10:06.168 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:03:30:E9:56:8E:2D:8F:4C:B2:3D:36:74:
  • E5:6C:52:50:D4:AD:34:CD:BF:E7:CE:B4:1D:CD:8D:39:
  • D8:9C:7B:D8:02:21:00:B9:0C:86:03:1F:03:5E:AD:5C:
  • 87:6D:7D:A7:02:02:A4:82:2B:C8:EF:83:C7:21:4E:59:
  • DA:35:CA:6D:35:FA:E3
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Sep 24 17:10:06.262 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B3:D9:60:D0:6D:E2:3B:AA:34:7F:68:
  • BA:93:56:B3:70:08:93:9D:23:E0:B8:34:B5:00:C5:24:
  • FD:22:BF:73:B9:02:21:00:AE:CB:E0:91:B7:A6:2F:8A:
  • 3D:94:5A:22:AA:C7:F8:2D:BE:C9:F0:46:7D:54:C5:2B:
  • E6:18:E8:3D:BC:2C:83:CB
First seen at:

CN=mx2.dismail.de

Certificate chain
Subject
Common Name (CN)
  • mx2.dismail.de
Alternative Names
  • mx2.dismail.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-09-24
Not valid after
2020-12-23
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B1:CA:8C:26:59:B8:DB:29:59:93:A8:70:31:30:9D:53:DB:92:10:FE:D6:7A:94:5A:39:0A:CB:37:49:94:EB:32
SHA1
BD:DF:C2:EA:B9:07:FC:DA:60:8E:9B:31:34:12:ED:58:40:A0:36:F5
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:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Sep 24 17:11:42.264 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F7:43:30:81:DE:77:78:00:F7:BA:8B:
  • E8:33:47:40:4C:62:7C:11:B3:11:2E:3F:41:A3:65:E5:
  • 5B:B8:83:7E:CA:02:21:00:DD:5F:4A:6C:4B:12:AC:BA:
  • A3:50:27:E3:B3:FB:66:3E:07:43:F9:10:05:55:93:57:
  • 4F:E8:B9:AC:FD:3E:25:25
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Sep 24 17:11:42.292 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:35:52:62:BB:4A:A3:8E:02:10:89:03:52:
  • 1D:F3:8C:F4:81:31:78:D4:18:2F:4E:4A:D4:33:D9:25:
  • A8:97:C1:6E:02:20:63:FF:A7:27:6A:BE:43:F9:C5:2A:
  • 31:16:A2:54:64:79:9E:C7:D0:6D:05:B5:2B:FD:7E:71:
  • 8E:C3:65:80:17:4E

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