SSL-Tools

SSL check results of mail.clue.im

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Discover if the mail servers for mail.clue.im 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 Sun, 20 Jul 2025 00:30:20 +0000

The mailservers of mail.clue.im can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.clue.im addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.clue.im
147.160.139.121
 -
supported
filesender.io
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s

Outgoing Mails

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

Certificates

First seen at:

CN=filesender.io

Certificate chain
  • filesender.io
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • filesender.io
Alternative Names
  • bookmark.lol
  • donotclick.link
  • filesender.io
  • getafile.link
  • gone.im
  • mail.bookmark.lol
  • mail.chatlink.im
  • mail.clue.im
  • mail.donotclick.link
  • mail.filesender.io
  • mail.getafile.link
  • mail.gone.im
  • mail.instachat.im
  • mail.linkchat.im
  • mail.oncea.link
  • mail.onceafile.link
  • mail.onetimechat.im
  • mail.onetimechat.link
  • mail.onetimefile.link
  • mail.onetimemessage.im
  • mail.protected.chat
  • mail.quicklink.fyi
  • mail.sendachat.link
  • mail.sendafile.link
  • mail.sendamessage.link
  • mail.tempfile.link
  • mail.tempurl.link
  • mail.textme.fyi
  • mail.textme.im
  • mail.yourtip.link
  • oncea.link
  • onceafile.link
  • onetimefile.link
  • onetimemessage.im
  • quicklink.fyi
  • sendafile.link
  • tempfile.link
  • tempurl.link
  • textme.fyi
  • yourtip.link
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-07-17
Not valid after
2025-10-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
10:97:21:20:D4:7E:67:B0:1E:B2:75:EA:AF:96:DA:2E:76:21:53:33:F7:5A:85:3D:D7:A3:F2:89:AB:A3:A1:A6
SHA1
3E:6D:81:BA:6C:ED:84:F5:76:29:A1:B2:41:C0:D8:EC:1B:AF:69:AE
X509v3 extensions
subjectKeyIdentifier
  • C6:86:31:2D:2D:DB:1E:96:9C:30:0F:9C:AC:81:30:82:01:DD:C3:84
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/25.crl
ct_precert_scts
  • 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 : Jul 17 16:20:13.300 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9F:78:AA:9C:C0:3D:D3:A7:5B:85:C8:
  • 96:E7:0D:95:A6:C1:3E:16:A0:9C:97:2C:22:82:6A:87:
  • A8:86:00:FB:57:02:21:00:85:DA:8C:26:10:68:B4:17:
  • DE:E3:07:E2:B0:29:98:2F:85:5F:90:EC:0B:C6:FE:48:
  • 99:08:3C:AE:37:54:32:32
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : ED:3C:4B:D6:E8:06:C2:A4:A2:00:57:DB:CB:24:E2:38:
  • 01:DF:51:2F:ED:C4:86:C5:70:0F:20:DD:B7:3E:3F:E0
  • Timestamp : Jul 17 16:20:13.294 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:79:97:A0:25:07:1C:B7:40:40:96:86:02:
  • 5A:EA:69:B9:8F:2E:50:DF:4F:74:3D:42:13:20:A4:B4:
  • F2:A7:47:DC:02:20:0D:CE:4D:3A:6A:6D:2B:DF:C0:50:
  • 04:73:3F:3A:23:78:10:4A:C1:4C:9E:82:5F:45:6D:DE:
  • 68:FE:F6:DE:D5:8C