SSL-Tools

SSL check results of petrounet.gr

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Discover if the mail servers for petrounet.gr 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

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Report created Wed, 15 Jul 2026 18:59:08 +0000

The mailservers of petrounet.gr can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @petrounet.gr addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.petrounet.gr
2001:4ba0:ffeb:1b4::5
 10
supported
*.petrounet.gr
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mail.petrounet.gr
193.111.198.185
 10
supported
*.petrounet.gr
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.petrounet.gr

Certificate chain
  • *.petrounet.gr
    • remaining
    • 384 bit
    • ecdsa-with-SHA384
      • E7
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.petrounet.gr
Alternative Names
  • *.petrounet.gr
  • petrounet.gr
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E7
validity period
Not valid before
2026-05-14
Not valid after
2026-08-12
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
8E:3B:0C:E0:0F:E4:AF:E3:94:88:FA:F6:EB:CC:39:8F:78:99:83:A4:6E:C8:03:90:FD:B2:8B:84:41:1D:88:1E
SHA1
C1:C1:35:0A:81:FF:6D:12:68:C1:B0:4B:0E:23:06:2C:81:DE:25:7E
X509v3 extensions
subjectKeyIdentifier
  • 64:52:43:74:C2:AD:E4:CD:F5:5E:CC:12:10:B5:C8:6E:D3:98:AE:1A
authorityKeyIdentifier
  • keyid:AE:48:9E:DC:87:1D:44:A0:6F:DA:A2:E5:60:74:04:78:C2:9C:00:80
authorityInfoAccess
  • CA Issuers - URI:http://e7.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e7.c.lencr.org/116.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : May 14 11:32:08.409 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:05:ED:E1:13:B5:C0:A7:23:97:70:22:7D:
  • 45:D5:B2:7E:96:24:48:22:29:24:A5:11:C3:EC:77:FF:
  • A9:EA:77:34:02:21:00:C3:4C:F1:D3:DB:02:B0:FB:D3:
  • BC:B1:17:B5:25:8A:47:FD:06:CB:B9:93:3A:23:C5:A6:
  • E3:6D:8A:36:CC:25:2E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37:
  • 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23
  • Timestamp : May 14 11:32:08.392 2026 GMT
  • Extensions: 00:00:05:00:11:13:2E:56
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9F:DF:FE:F5:78:0B:5C:4C:88:D5:E2:
  • D7:D2:7E:D2:C5:30:8B:26:61:4F:47:66:93:2A:EB:89:
  • 78:17:0C:9F:0D:02:21:00:E3:7E:73:7B:2E:5F:08:4D:
  • F2:97:93:82:15:0A:39:91:43:A4:4A:54:75:B3:E0:54:
  • 1B:35:45:BA:CD:42:9D:3D

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.mail.petrounet.gr
  • DANE-TA: Trust Anchor Assertion
  • Use full certificate
  • SHA-256 Hash
valid
valid