SSL-Tools

SSL check results of 4netmail.org

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Discover if the mail servers for 4netmail.org 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, 04 Mar 2026 17:02:26 +0000

The mailservers of 4netmail.org can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @4netmail.org addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.4netmail.org
2a03:4000:29:5aa::b182:4444
 10
supported
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s
mail.4netmail.org
94.16.117.107
 10
supported
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s

Outgoing Mails

We have received emails from these servers with @4netmail.org sender addresses. Test mail delivery

Host TLS Version & Cipher
mail.4netmail.org (IPv6:2a03:4000:29:5aa::b182:4444)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

Certificate chain
    • remaining
    • 384 bit
    • ecdsa-with-SHA384
      • YE2
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Alternative Names
  • autoconfig.4netmail.org
  • autodiscover.4netmail.org
  • mail.4netmail.org
  • mta-sts.4netguides.org
  • mta-sts.4netmail.org
  • mta-sts.federation.network
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE2
validity period
Not valid before
2026-03-03
Not valid after
2026-06-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
1A:AF:56:31:60:03:89:77:A2:B8:3F:4A:35:F2:6E:66:74:E8:75:69:76:BE:CA:AF:7C:96:81:DD:D3:51:7F:5C
SHA1
F0:9A:78:AD:CE:99:0E:94:16:49:F6:C0:42:30:0A:B6:21:E9:8E:BF
X509v3 extensions
authorityKeyIdentifier
  • keyid:B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
  • CA Issuers - URI:http://ye2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye2.c.lencr.org/6.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 71:7E:95:F3:C2:38:8A:6D:B1:E3:84:49:3D:31:E1:5A:
  • A9:62:08:76:2D:42:00:E0:05:0C:D0:67:B5:A6:61:E2
  • Timestamp : Mar 3 23:31:30.008 2026 GMT
  • Extensions: 00:00:05:00:0A:D2:87:10
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:75:94:FC:92:61:49:EA:79:01:07:09:D4:
  • 01:F6:9C:7E:CC:E0:FC:65:59:1B:A8:23:9C:37:6D:F3:
  • B1:1C:7C:20:02:21:00:C8:03:AE:24:99:97:96:A4:E3:
  • 39:78:7F:52:78:EF:04:C4:FB:04:0C:B0:3A:66:C2:E3:
  • 2C:99:A6:96:9E:9C:F3
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77:
  • E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6
  • Timestamp : Mar 3 23:31:29.902 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:09:54:C8:31:05:6A:82:80:A8:CE:90:AC:
  • 6C:4B:7B:5F:CB:99:EC:44:43:02:5F:CB:EE:F0:DC:9E:
  • 8B:03:0B:50:02:21:00:EC:31:F4:70:67:07:E7:72:AD:
  • A3:B4:4E:3D:CF:5C:51:56:40:A1:E2:9E:D5:81:44:19:
  • A6:CC:CC:A3:8A:0C:C0