SSL-Tools

SSL check results of smtp.reiermann.de

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Discover if the mail servers for smtp.reiermann.de 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 Sun, 25 May 2025 14:07:12 +0000

The mailservers of smtp.reiermann.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.reiermann.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.reiermann.de
78.46.245.161
 10
supported
*.reiermann.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.reiermann.de

Certificate chain
  • *.reiermann.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.reiermann.de
Alternative Names
  • *.reiermann.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-05-23
Not valid after
2025-08-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
7F:10:27:CC:53:02:85:F6:18:54:43:F9:85:14:59:BF:AA:9A:4B:C8:B0:3A:43:45:73:35:95:04:8D:57:01:85
SHA1
60:79:F9:49:29:B7:C4:EE:DA:D6:E8:75:61:D8:85:B5:27:12:7E:0E
X509v3 extensions
subjectKeyIdentifier
  • CC:46:DF:BC:3C:58:48:46:D3:50:65:70:42:DA:64:5D:72:69:26:A7
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/15.crl
ct_precert_scts
  • 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 : May 23 13:32:09.249 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:68:4A:4E:00:C0:65:8E:9D:91:9E:8D:6D:
  • C2:A7:49:78:69:D4:79:51:FA:7E:99:5A:5E:9F:38:53:
  • B3:30:F8:26:02:20:2D:EB:E4:AE:82:39:CB:76:E5:23:
  • 00:65:7D:AB:5F:25:4B:58:BC:4D:D9:A5:72:03:E9:2F:
  • F7:98:D9:56:45:A8
  • 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 : May 23 13:32:11.002 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:6A:02:90:4C:C0:0F:C3:28:DF:35:95:5C:
  • 8D:0A:FC:07:63:51:FF:7C:E7:9D:F7:04:4B:1B:D8:73:
  • 9F:11:AD:1B:02:20:64:A4:44:7A:0D:27:59:E2:8E:07:
  • CF:64:EE:E2:B2:2D:2D:FE:6F:7C:68:43:CA:CD:21:BE:
  • 2F:70:96:2E:6D:26