SSL-Tools

SSL check results of portal56.net

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Discover if the mail servers for portal56.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

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Report created Fri, 15 Aug 2025 12:22:55 +0000

The mailservers of portal56.net can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @portal56.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.portal56.net
217.154.74.39
 10
supported
mail.portal56.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
7 s

Outgoing Mails

We have not received any emails from a @portal56.net address so far. Test mail delivery

Certificates

First seen at:

CN=mail.portal56.net

Certificate chain
  • mail.portal56.net
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E5
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.portal56.net
Alternative Names
  • mail.portal56.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E5
validity period
Not valid before
2025-08-15
Not valid after
2025-11-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
FA:44:2C:03:44:79:84:33:4B:E3:FC:D6:7C:23:02:5A:72:96:1B:28:1A:84:7E:25:92:09:62:89:E1:F8:F3:89
SHA1
3D:10:A0:05:D2:A2:D9:C3:C2:98:DE:5F:2A:AD:13:97:95:E4:D4:DE
X509v3 extensions
subjectKeyIdentifier
  • 92:6B:73:95:6A:81:0D:B3:AA:22:05:24:DC:B2:FA:73:08:C6:17:91
authorityKeyIdentifier
  • keyid:9F:2B:5F:CF:3C:21:4F:9D:04:B7:ED:2B:2C:C4:C6:70:8B:D2:D7:0D
authorityInfoAccess
  • CA Issuers - URI:http://e5.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e5.c.lencr.org/9.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : Aug 15 10:55:54.776 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5D:D9:A1:95:30:18:41:37:32:C7:1F:6E:
  • 99:57:64:84:4B:0E:54:17:2B:A5:AD:2F:7E:C7:43:76:
  • 53:F4:DA:6D:02:20:65:31:02:37:F0:C5:03:65:F9:8F:
  • 3B:F8:35:15:89:24:DF:4C:0D:72:CB:57:1A:14:86:C6:
  • F4:13:A9:4A:36:FC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
  • 26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
  • Timestamp : Aug 15 10:55:56.758 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:23:57:AA:5A:16:BC:3E:3B:0A:BC:E1:F4:
  • 17:81:C9:C1:EA:CD:19:DD:FB:E1:5C:A7:87:A6:A5:69:
  • 5D:A0:1B:47:02:20:71:09:98:C5:F9:72:09:69:A0:5C:
  • 50:E7:70:4A:1F:35:85:59:92:6E:7A:2A:78:BD:F2:3B:
  • 9F:DC:11:57:BA:05