SSL-Tools

SSL check results of mailers.unse.edu.ar

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Discover if the mail servers for mailers.unse.edu.ar 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, 09 Sep 2025 16:53:54 +0000

The mailservers of mailers.unse.edu.ar can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mailers.unse.edu.ar addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailers.unse.edu.ar
170.210.224.60
 10
supported
mailers.unse.edu.ar
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
13 s

Outgoing Mails

We have not received any emails from a @mailers.unse.edu.ar address so far. Test mail delivery

Certificates

First seen at:

CN=mailers.unse.edu.ar

Certificate chain
  • mailers.unse.edu.ar
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E8
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mailers.unse.edu.ar
Alternative Names
  • mailers.unse.edu.ar
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E8
validity period
Not valid before
2025-09-02
Not valid after
2025-12-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
0C:DC:0E:32:AE:F4:23:A6:EA:F2:10:AB:FF:A6:32:08:AB:11:07:7E:CA:AB:AA:58:81:E6:97:34:DC:07:98:74
SHA1
2B:44:10:33:14:61:7A:FC:31:E2:48:36:1F:16:13:5B:E9:3A:27:F0
X509v3 extensions
subjectKeyIdentifier
  • 09:27:BD:56:D4:6A:1E:C7:A3:BE:34:BA:87:20:10:FE:17:14:E1:FC
authorityKeyIdentifier
  • keyid:8F:0D:13:A2:F6:2E:7E:D1:50:6C:33:18:38:5D:59:8E:23:72:91:CA
authorityInfoAccess
  • CA Issuers - URI:http://e8.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e8.c.lencr.org/127.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 : Sep 3 00:02:41.827 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5F:0E:5B:7D:36:7C:D8:E1:1A:5B:3D:06:
  • 34:3F:98:FC:7E:9C:BF:CD:A9:34:86:5A:EC:44:0F:79:
  • A8:30:79:E7:02:20:70:AD:94:09:9B:85:32:1C:65:FA:
  • AE:5A:E3:6C:47:E0:23:2C:56:E1:8D:35:20:00:03:1B:
  • 7A:07:EE:CD:22:A2
  • 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 : Sep 3 00:02:41.859 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D1:C8:A3:50:2D:D4:D1:04:CD:FB:3E:
  • 2E:6C:2D:B7:CB:93:5C:18:DB:89:B1:C1:68:9C:9C:84:
  • E1:61:9C:69:7A:02:20:79:9C:45:4F:E1:9B:4F:7E:2D:
  • 81:3E:71:06:7E:7A:7A:90:3F:CF:1B:2C:2F:4A:97:FA:
  • 54:58:A2:DD:82:27:8D

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.mailers.unse.edu.ar
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid