SSL-Tools

SSL check results of smtp.expro.pl

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Discover if the mail servers for smtp.expro.pl 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 Fri, 29 Nov 2024 20:18:55 +0000

The mailservers of smtp.expro.pl can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.expro.pl addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.expro.pl
193.105.32.170
 -
supported
*.expro.pl
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @smtp.expro.pl address so far. Test mail delivery

Certificates

First seen at:

CN=*.expro.pl

Certificate chain
  • *.expro.pl
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.expro.pl
Alternative Names
  • *.expro.pl
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-09-23
Not valid after
2024-12-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
41:E4:A2:BE:34:F3:98:98:83:18:06:D7:8F:D0:D4:4F:CC:16:B6:C3:85:6B:98:2C:A1:F5:91:25:97:1B:63:99
SHA1
65:E0:52:F2:06:F8:5F:5C:BF:DD:C1:F2:7E:2B:40:E8:97:30:72:79
X509v3 extensions
subjectKeyIdentifier
  • D1:99:F0:73:1E:AB:A4:44:62:A8:A8:4B:36:2A:94:BA:8F:AF:FD:75
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 : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Sep 23 12:02:27.302 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D3:FC:BE:BF:82:AD:C1:D4:56:6A:25:
  • 6C:93:0D:AD:0E:8A:03:5B:BA:70:F2:D4:A4:43:FB:0D:
  • 8E:D2:A7:17:30:02:20:19:B7:CD:68:07:2F:57:C4:28:
  • B0:76:5E:91:69:83:9D:AC:0A:CF:ED:D9:C0:FD:79:E4:
  • 2D:9F:BD:42:A3:A5:30
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32:
  • 4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C
  • Timestamp : Sep 23 12:02:27.488 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E9:77:95:53:36:D7:3C:4C:A5:F3:A9:
  • 20:98:EB:5F:49:6E:A2:00:B4:36:61:48:66:93:19:26:
  • 27:8F:DC:14:81:02:21:00:92:AD:4A:23:53:15:FB:D6:
  • 8F:61:69:06:68:82:90:20:0A:AB:91:BB:72:25:25:06:
  • 5E:F3:FE:25:D8:86:1D:AA