SSL-Tools

SSL check results of redstarplc.com

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Discover if the mail servers for redstarplc.com 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

JSON Refresh

Report created Sun, 14 Jun 2020 11:09:42 +0000

No connection to the mailservers of redstarplc.com could be established.

Servers

Incoming Mails

These servers are responsible for incoming mails to @redstarplc.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
redstarplc.net
197.210.154.22
Results incomplete
0
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
smtp.dnsexit.com
64.182.101.45
Results incomplete
10
supported
smtp.dnsexit.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
smtp.dnsexit.com
67.214.161.149
Results incomplete
10
supported
smtp.dnsexit.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

emailAddress=jchen@dnsexit.com,CN=smtp.dnsexit.com,OU=IT,O=Netdorm\, Inc.,L=Cincinnati,ST=Ohio,C=US

Certificate chain
  • smtp.dnsexit.com (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • US
State (ST)
  • Ohio
Locality (L)
  • Cincinnati
Organization (O)
  • Netdorm, Inc.
Organizational Unit (OU)
  • IT
Common Name (CN)
  • smtp.dnsexit.com
Email
  • jchen@dnsexit.com
Issuer

Certificate is self-signed.

validity period
Not valid before
2019-08-03
Not valid after
2020-08-02
Fingerprints
SHA256
3C:F1:80:72:20:2C:FF:DE:85:DB:18:86:97:00:37:53:EE:52:9D:E1:F8:C4:0C:08:96:13:25:4A:4F:AE:14:63
SHA1
06:3A:EB:03:45:A0:FE:4E:58:1B:29:AB:65:BA:99:4F:3D:1E:8E:FD
X509v3 extensions
subjectKeyIdentifier
  • 78:6C:11:D1:03:02:92:77:E3:D4:3D:F4:C7:4B:26:D6:F0:0A:00:3A
authorityKeyIdentifier
  • keyid:78:6C:11:D1:03:02:92:77:E3:D4:3D:F4:C7:4B:26:D6:F0:0A:00:3A