SSL-Tools

SSL check results of las.int

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Discover if the mail servers for las.int 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, 30 May 2020 10:17:10 +0000

The mailservers of las.int 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 @las.int addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.las.int
163.121.143.52
 10
supported
LAS-MAIL-N01
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
4 s

Outgoing Mails

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

Certificates

First seen at:

CN=LAS-MAIL-N01

Certificate chain
  • LAS-MAIL-N01 (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha1WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Common Name (CN)
  • LAS-MAIL-N01
Alternative Names
  • LAS-MAIL-N01
  • LAS-MAIL-N01.las.org
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-03-19
Not valid after
2025-03-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
BB:7B:19:C8:45:FA:BB:F1:FA:E4:0F:A4:EE:58:79:93:96:0F:5B:6B:0E:2A:65:8E:54:17:49:FE:28:81:42:2B
SHA1
43:8A:3C:E8:CE:6B:0E:29:F9:B5:78:DD:43:AC:D9:90:89:B2:44:37