SSL-Tools

SSL check results of lostca.se

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Discover if the mail servers for lostca.se 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 Thu, 10 Jul 2025 16:05:17 +0000

The mailservers of lostca.se can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @lostca.se addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.lostca.se
2a01:4f9:3b:505c::2
 1
supported
mail.lostca.se
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s
mail.lostca.se
65.21.75.227
 1
supported
mail.lostca.se
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.lostca.se

Certificate chain
  • mail.lostca.se
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.lostca.se
Alternative Names
  • email.lostca.se
  • email.mbox.im
  • mail.lostca.se
  • mx.inet6.in
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-07-10
Not valid after
2025-10-08
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
52:05:E8:BC:7B:DF:84:76:B9:12:7D:4F:4A:23:39:0A:95:27:9E:3D:50:C9:D1:51:DC:A7:77:0D:1F:46:6E:7C
SHA1
75:02:CA:ED:87:06:14:5F:40:96:91:28:3A:F2:46:87:1B:2D:15:89
X509v3 extensions
subjectKeyIdentifier
  • F1:F4:D7:40:60:47:FC:99:4E:FD:7B:2F:F5:FF:12:03:50:C8:80:28
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/108.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 : Jul 10 15:51:11.411 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:08:05:D7:A0:35:CF:D0:32:E3:60:41:3B:
  • 0E:72:F5:E2:C8:2B:0C:5E:B6:9B:49:5A:64:94:18:7B:
  • C0:63:A3:B9:02:21:00:DA:69:E8:01:28:C6:B7:2C:C2:
  • A0:16:C8:DE:3B:09:8A:65:2E:24:79:F5:BE:B3:84:A8:
  • 97:CE:68:F3:F4:4B:FF
  • 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 : Jul 10 15:51:11.410 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:EE:B0:58:F8:02:FC:86:40:09:D1:79:
  • 38:9A:28:04:3F:16:7D:62:85:8E:98:43:AD:73:19:9D:
  • 55:A1:5A:D4:50:02:21:00:EA:F4:37:79:FE:71:9B:8B:
  • 38:C1:AA:E6:C7:57:C0:E3:8D:FE:35:C4:76:E7:EB:6B:
  • B4:D6:AA:5F:E6:3B:45:86

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.mail.lostca.se
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mail.lostca.se
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-512 Hash
valid
valid