SSL-Tools

SSL check results of 4-box.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for 4-box.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

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Report created Sun, 06 Mar 2022 16:56:17 +0000

No connection to the mailservers of 4-box.de could be established.

Servers

Incoming Mails

These servers are responsible for incoming mails to @4-box.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
4-box.de
2a02:2b80:101:104::322
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
4-box.de
5.44.107.239
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @4-box.de address so far. Test mail delivery

Certificates

No Certificates found