SSL-Tools

SSL check results of tryrfsfirst.co.uk

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Discover if the mail servers for tryrfsfirst.co.uk 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 Tue, 15 Apr 2025 11:32:01 +0000

The mailservers of tryrfsfirst.co.uk can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @tryrfsfirst.co.uk addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.rfsfleet.co.uk
86.63.38.184
 10
supported
mail.rfsfleet.co.uk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
4 s

Outgoing Mails

We have not received any emails from a @tryrfsfirst.co.uk address so far. Test mail delivery

Certificates

First seen at:

CN=mail.rfsfleet.co.uk

Certificate chain
  • mail.rfsfleet.co.uk
    • remaining
    • 3072 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.rfsfleet.co.uk
Alternative Names
  • mail.rfsfleet.co.uk
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-03-08
Not valid after
2025-06-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A3:A2:ED:77:A8:C4:37:20:32:8A:10:BA:C3:9E:66:6B:88:53:C2:E4:B3:CF:DF:81:85:4C:C1:65:65:A2:D0:AB
SHA1
5E:C7:EB:AD:6A:27:0A:07:E2:AC:45:B1:DF:D9:5E:16:AD:E0:A0:A4
X509v3 extensions
subjectKeyIdentifier
  • FA:FF:7B:A0:4D:35:70:BC:3C:13:D0:56:1A:11:9A:F2:9D:CB:5D:7C
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Mar 8 11:01:25.853 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:72:23:4B:38:E6:7C:86:C6:9E:D9:0A:1E:
  • A1:1E:FA:90:4B:2A:78:1B:86:41:2A:A3:C7:4F:BA:85:
  • 50:0E:F6:E8:02:21:00:A7:3C:4F:3C:0C:49:2C:E2:40:
  • EF:A0:74:F4:19:35:4E:51:CA:F8:02:3B:FC:84:35:D7:
  • 9C:96:6F:05:C9:6D:3F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
  • 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
  • Timestamp : Mar 8 11:01:25.847 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:07:09:BB:2E:45:DE:1B:15:E2:6F:7B:64:
  • D5:72:E6:44:2A:49:CE:10:4E:5E:54:C4:37:D0:F6:25:
  • A2:E4:07:12:02:21:00:D8:46:26:DE:AD:19:67:CC:43:
  • 75:31:7E:57:1F:85:BE:80:50:6B:1A:DA:9C:EB:FE:04:
  • 2E:1D:4F:0B:9B:86:3F