SSL-Tools

SSL check results of zempline.net

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Discover if the mail servers for zempline.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 Fri, 03 Oct 2025 20:22:59 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.zempline.net
81.221.196.69
 10
supported
mail.zempline.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.zempline.net

Certificate chain
  • mail.zempline.net
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.zempline.net
Alternative Names
  • mail.zempline.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2025-09-30
Not valid after
2025-12-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
81:CC:7F:69:D0:19:B8:2C:1F:B9:BC:A1:61:0B:DA:1E:80:B8:64:D4:2A:32:42:11:5E:D8:B1:D7:22:EB:8B:40
SHA1
76:E4:B4:73:C2:CB:B1:B9:9C:24:28:43:4E:77:E7:52:4C:F9:BF:79
X509v3 extensions
subjectKeyIdentifier
  • E5:FD:2B:8F:92:33:2A:2F:FF:E1:7A:05:95:6D:E2:35:3F:F5:21:57
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/101.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 : Sep 30 20:34:17.296 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:59:2E:21:AA:B7:5F:F8:57:9F:3F:DD:4C:
  • FD:4B:22:96:84:D7:99:13:C4:94:C6:E2:97:F6:C7:7C:
  • FD:00:2F:9B:02:21:00:EB:15:FE:D6:ED:0E:E2:0B:26:
  • 8A:0A:AB:01:22:5B:BE:EB:79:1E:88:6E:30:82:ED:A4:
  • 88:99:BC:83:2A:24:EA
  • 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 : Sep 30 20:34:17.343 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A6:82:17:57:87:03:6B:DA:DB:AC:69:
  • 3F:4A:E4:90:E6:5F:E4:12:48:C9:64:E6:12:26:6A:A5:
  • 86:59:4C:BD:72:02:21:00:ED:F1:09:99:14:E9:21:34:
  • B6:F2:A9:8F:15:89:60:CC:5A:2A:D0:BE:1D:4A:CD:CE:
  • 86:6F:2E:2C:F2:BA:87:45