SSL check results of t-online.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for t-online.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 Wed, 01 Apr 2020 16:47:47 +0000

No connection to the mailservers of t-online.de could be established.

Servers

Incoming Mails

These servers are responsible for incoming mails to @t-online.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx02.t-online.de
194.25.134.9
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mx03.t-online.de
194.25.134.73
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mx00.t-online.de
194.25.134.8
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mx01.t-online.de
194.25.134.72
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 received emails from these servers with @t-online.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mailout07.t-online.de (194.25.134.83)
TLSv1.2 AECDH-AES256-SHA
mailout06.t-online.de (194.25.134.19)
TLSv1.2 AECDH-AES256-SHA
mailout03.t-online.de (194.25.134.81)
TLSv1.2 AECDH-AES256-SHA
mailout04.t-online.de (194.25.134.18)
TLSv1.2 AECDH-AES256-SHA
mailout10.t-online.de (194.25.134.21)
TLSv1.2 AECDH-AES256-SHA
unknown (195.206.106.194)
Insecure - not encrypted!

Certificates

No Certificates found