SSL-Tools

SSL check results of synergyparticipacoes.com.br

NEW You can also bulk check multiple servers.

Discover if the mail servers for synergyparticipacoes.com.br 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 Sat, 29 Mar 2025 08:54:05 +0000

We can not guarantee a secure connection to the mailservers of synergyparticipacoes.com.br!

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

/mailservers/synergyparticipacoes.com.br

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
srv01.synergyparticipacoes.com.br
2605:9880:300:1400:6:aea:92:9
 5
supported
srv01.gsweb.com.br
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s
srv01.synergyparticipacoes.com.br
104.243.41.133
Results incomplete
5 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
srv02.synergyparticipacoes.com.br
2605:9880:300:1400:6:aea:92:9
 10
supported
srv01.gsweb.com.br
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s
srv02.synergyparticipacoes.com.br
104.243.41.134
Results incomplete
10 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 @synergyparticipacoes.com.br address so far. Test mail delivery

Certificates

First seen at:

CN=srv01.gsweb.com.br

Certificate chain
  • srv01.gsweb.com.br
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • srv01.gsweb.com.br
Alternative Names
  • srv01.gsweb.com.br
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-03-17
Not valid after
2025-06-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B0:44:1F:5A:BD:DF:44:2F:6E:E3:49:8E:E9:37:C1:EC:92:5E:7E:8A:4D:A1:73:63:87:39:C7:B2:4A:37:47:88
SHA1
84:2B:B9:7A:72:DE:07:63:E7:D5:49:DA:31:90:CD:A9:FA:21:F9:F4
X509v3 extensions
subjectKeyIdentifier
  • 9D:05:D5:A1:30:24:10:30:3C:91:DA:33:7C:82:69:E0:27:BF:E9:59
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/47.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Mar 17 17:51:05.932 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:78:8A:97:A9:BE:5F:17:FB:16:C7:EF:B7:
  • F4:EA:DA:A0:9F:AA:00:E5:92:07:17:F7:69:B6:EA:6F:
  • BD:B0:7B:42:02:20:67:05:40:B4:B8:09:19:64:CC:92:
  • 9C:43:D7:6F:5C:FA:67:90:DD:32:47:98:B1:A4:F9:6A:
  • 42:F8:75:A0:B6:54
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E0:92:B3:FC:0C:1D:C8:E7:68:36:1F:DE:61:B9:96:4D:
  • 0A:52:78:19:8A:72:D6:72:C4:B0:4D:A5:6D:6F:54:04
  • Timestamp : Mar 17 17:51:05.948 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B4:97:03:74:DA:23:70:1F:16:51:A0:
  • FD:AE:82:DE:4D:25:D4:38:4F:0B:6B:BE:30:6C:1A:00:
  • 71:78:F7:6C:C3:02:21:00:AF:11:F0:76:2D:45:CA:90:
  • A3:82:E1:9E:28:07:AC:2B:38:2C:26:7C:99:CE:22:D5:
  • 1F:B6:52:D3:CB:C3:41:2C

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.srv01.synergyparticipacoes.com.br
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
error
Debug
—