SSL check results of sharpness.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for sharpness.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 Fri, 24 Mar 2023 16:09:03 +0000

We can not guarantee a secure connection to the mailservers of sharpness.de!

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

/mailservers/sharpness.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @sharpness.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
loki2.sharpness.de
46.4.135.200
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
6 s
loki.sharpness.de
78.46.151.244
100
supported
*.sharpness.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.sharpness.de,O=sharpness.de,OU=Proxmox Mail Gateway

Certificate chain
  • *.sharpness.de (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority

Subject
Organizational Unit (OU)
  • Proxmox Mail Gateway
Organization (O)
  • sharpness.de
Common Name (CN)
  • *.sharpness.de
Issuer

Certificate is self-signed.

validity period
Not valid before
2018-03-06
Not valid after
2028-03-03
Fingerprints
SHA256
D1:36:B8:DA:4F:A6:86:23:C1:21:02:F1:3C:33:3D:DF:9B:FA:1E:A2:EE:32:DB:1B:81:21:1B:0E:AD:34:EF:C1
SHA1
C0:6A:7B:47:0A:7F:CA:3D:58:93:9E:8F:84:9C:1F:2A:F6:D5:38:C2