SSL-Tools

SSL check results of gomtuu.net

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Discover if the mail servers for gomtuu.net 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 Wed, 28 Feb 2024 22:57:52 +0000

We can not guarantee a secure connection to the mailservers of gomtuu.net!

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

/mailservers/gomtuu.net

Servers

Incoming Mails

These servers are responsible for incoming mails to @gomtuu.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
baryon.gomtuu.net
85.149.20.222
 10
supported
smtp.gomtuu.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
unimatrix.gomtuu.net
77.168.71.170
Results incomplete
20
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s

Outgoing Mails

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

Certificates

First seen at:

emailAddress=postmaster@gomtuu.net,CN=smtp.gomtuu.net,OU=SMTP Server,O=Gomtuu Net,L=Benthuizen,ST=Zuid-Holland,C=NL

Certificate chain
  • smtp.gomtuu.net (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Country (C)
  • NL
State (ST)
  • Zuid-Holland
Locality (L)
  • Benthuizen
Organization (O)
  • Gomtuu Net
Organizational Unit (OU)
  • SMTP Server
Common Name (CN)
  • smtp.gomtuu.net
Email
  • postmaster@gomtuu.net
Issuer

Certificate is self-signed.

validity period
Not valid before
2023-12-10
Not valid after
2025-12-09
Fingerprints
SHA256
5B:3F:53:80:51:0B:7B:E2:51:28:1F:1B:5A:E0:66:DF:15:8C:08:CB:DD:8E:86:77:A5:9F:DA:E3:D1:16:8E:8E
SHA1
14:91:23:AE:C5:A6:74:0C:65:4B:19:7E:B5:93:30:3A:15:0E:2C:8B