SSL-Tools

SSL check results of bytebolt.at

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Discover if the mail servers for bytebolt.at 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 Mon, 04 Aug 2025 00:30:24 +0000

The mailservers of bytebolt.at can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @bytebolt.at addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.bytemail.at
185.219.84.136
 10
supported
*.bytemail.at
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.bytemail.at

Certificate chain
  • *.bytemail.at
    • 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)
  • *.bytemail.at
Alternative Names
  • *.bytemail.at
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E5
validity period
Not valid before
2025-06-14
Not valid after
2025-09-12
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B7:A2:18:0A:B0:5B:C3:44:2F:4D:1D:FB:AA:0B:A4:AD:97:FA:54:B4:A6:D8:FD:A2:03:27:DA:70:4A:BB:CB:65
SHA1
2B:64:D6:7B:5A:44:84:D3:59:13:07:89:38:C6:E9:C5:8B:C0:66:F5
X509v3 extensions
subjectKeyIdentifier
  • 2D:9D:CB:9F:A3:BE:45:5A:7B:7E:7F:2F:4E:50:33:C5:DD:93:C8:55
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/92.crl
ct_precert_scts
  • 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 : Jun 14 10:18:40.315 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DC:4F:78:3B:3F:DA:D7:B2:FA:1B:0F:
  • BE:BA:83:83:6B:65:5E:1A:FB:65:71:01:A7:F1:A0:61:
  • 03:C7:5B:27:33:02:21:00:D1:17:F0:8C:02:C2:F4:A9:
  • 9C:66:75:47:37:E3:E2:92:5F:85:19:B9:E0:1A:06:28:
  • B9:A4:E5:26:51:A5:E7:A1
  • 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 : Jun 14 10:18:42.408 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:20:E3:8F:7E:43:1B:E0:7D:D1:19:5F:16:
  • 67:0B:CF:7B:9A:D3:78:23:12:08:96:F9:38:16:C1:FB:
  • EF:D6:C0:3C:02:21:00:BA:6E:FD:2E:91:44:37:BF:16:
  • 5D:E1:18:3C:81:28:04:94:8A:14:51:17:30:52:B5:0D:
  • A1:2F:30:0E:47:3B:02