SSL-Tools

SSL check results of cualquiera.net

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Discover if the mail servers for cualquiera.net 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 Sat, 27 Jun 2020 19:59:56 +0000

The mailservers of cualquiera.net can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cualquiera.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
burbujamail.combios.es
185.5.236.210
 10
supported
burbujamail.combios.es
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s
colom.combios.es
91.235.111.132
 20
supported
nxv-ns1
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_EXPORT_WITH_RC4_40_MD5
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
14 s

Outgoing Mails

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

Certificates

First seen at:

emailAddress=root@burbujamail.combios.es,CN=burbujamail.combios.es,OU=IT,O=burbujamail.combios.es,L=ShenZhen,ST=GuangDong,C=CN

Certificate chain
  • burbujamail.combios.es (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CN
State (ST)
  • GuangDong
Locality (L)
  • ShenZhen
Organization (O)
  • burbujamail.combios.es
Organizational Unit (OU)
  • IT
Common Name (CN)
  • burbujamail.combios.es
Email
  • root@burbujamail.combios.es
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-03-28
Not valid after
2030-03-26
Fingerprints
SHA256
24:F0:2A:7D:C3:22:BF:21:F4:E6:2E:0E:D1:B9:A3:8F:8B:28:95:E6:64:2C:A3:D9:97:BB:76:0F:5B:0D:E9:15
SHA1
77:A2:58:95:9B:E6:BA:CB:EA:DE:14:72:F2:BC:26:BD:63:73:CA:2A
X509v3 extensions
subjectKeyIdentifier
  • 90:17:EB:14:09:E2:1D:B8:0C:84:26:C2:F4:D8:20:18:00:B2:8F:43
authorityKeyIdentifier
  • keyid:90:17:EB:14:09:E2:1D:B8:0C:84:26:C2:F4:D8:20:18:00:B2:8F:43
First seen at:

CN=nxv-ns1

Certificate chain
  • nxv-ns1 (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Common Name (CN)
  • nxv-ns1
Issuer

Certificate is self-signed.

validity period
Not valid before
2014-09-25
Not valid after
2024-09-22
Fingerprints
SHA256
0D:48:07:B7:9D:E3:90:E8:3D:4D:9E:EE:C3:97:A2:F3:44:93:EA:5B:0A:70:97:1D:2E:97:27:5F:42:7F:94:22
SHA1
D9:4B:9C:BF:41:CB:A0:00:2A:67:13:E1:47:5B:18:94:DA:13:96:87