SSL-Tools

SSL check results of mail.developermail.com

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Discover if the mail servers for mail.developermail.com 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 Sun, 14 Apr 2024 14:33:13 +0000

The mailservers of mail.developermail.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.developermail.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.developermail.com
51.143.6.192
 -
supported
mail.developermail.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.developermail.com

Certificate chain
  • mail.developermail.com
    • remaining
    • 256 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.developermail.com
Alternative Names
  • mail.developermail.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-14
Not valid after
2024-07-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
57:1C:5D:6E:B7:A1:29:E5:CE:63:ED:52:13:1A:3E:D3:D6:3D:54:EB:B1:CF:8D:7B:4E:14:F9:59:AB:84:C4:6F
SHA1
1E:B0:6B:2E:E6:F0:60:F4:83:28:5A:86:59:18:23:AC:9F:D9:7A:12
X509v3 extensions
subjectKeyIdentifier
  • FB:82:E7:4C:7B:87:6A:71:31:5C:5D:BD:52:0F:67:AA:5E:9C:5D:B2
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Apr 14 14:31:43.369 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:73:6C:9A:53:B5:D0:4E:EE:84:33:67:A1:
  • 5F:A5:6C:44:50:DC:A2:05:76:5F:FB:6A:26:6C:94:D4:
  • 1E:38:5B:B3:02:21:00:88:50:DE:F8:92:D2:AA:3A:3D:
  • 6F:5C:D5:E7:EB:D5:80:3C:F5:D4:83:65:67:C0:76:A2:
  • 75:B5:A8:0A:A6:C2:F1
  • 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 : Apr 14 14:31:43.490 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:02:80:9F:4C:60:DB:AA:77:BB:91:1A:6B:
  • 96:CE:A3:A6:90:8F:CA:6E:05:02:52:D0:88:94:96:19:
  • F4:92:CA:9D:02:20:0F:A4:00:A5:FE:C5:30:1B:5A:2B:
  • 70:0E:19:B9:B6:07:8D:EF:9C:E1:F8:BF:32:0B:1F:2F:
  • 85:85:6C:F0:0D:23