SSL check results of backbone.co.at

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Discover if the mail servers for backbone.co.at 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 Mon, 29 Nov 2021 10:37:15 +0000

We can not guarantee a secure connection to the mailservers of backbone.co.at!

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

/mailservers/backbone.co.at

Servers

Incoming Mails

These servers are responsible for incoming mails to @backbone.co.at addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
www3.companyweb.at
193.26.156.211
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mailwall.backbone.co.at
81.31.131.240
50
supported
mailwall2.backbone.co.at
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
13 s

Outgoing Mails

We have not received any emails from a @backbone.co.at address so far. Test mail delivery

Certificates

First seen at:

CN=mailwall2.backbone.co.at,O=backbone,C=at

Certificate chain
  • mailwall2.backbone.co.at (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority

Subject
Country (C)
  • at
Organization (O)
  • backbone
Common Name (CN)
  • mailwall2.backbone.co.at
Issuer

Certificate is self-signed.

validity period
Not valid before
2018-06-04
Not valid after
2028-06-01
Fingerprints
SHA256
9F:EC:4A:99:FD:4B:03:0A:07:A9:75:2D:4C:AB:ED:8E:4F:ED:42:E1:C6:0F:3D:6F:4B:CF:02:39:22:00:32:F6
SHA1
5F:F4:B7:DF:AD:2D:0F:FF:03:37:A1:6F:B8:8A:5D:2D:55:E0:E9:CF
X509v3 extensions
subjectKeyIdentifier
  • 90:B9:D2:B3:F9:7D:64:4A:19:48:2E:2D:F5:D2:DE:29:43:B7:E5:81
authorityKeyIdentifier
  • keyid:90:B9:D2:B3:F9:7D:64:4A:19:48:2E:2D:F5:D2:DE:29:43:B7:E5:81