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SSL check results of mail.bbs-erfurt.de

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Discover if the mail servers for mail.bbs-erfurt.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 Wed, 09 Dec 2020 18:01:21 +0000

The mailservers of mail.bbs-erfurt.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.bbs-erfurt.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.bbs-erfurt.de
217.239.177.187
 -
supported
mail.bbs-erfurt.de
DANE
valid
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 @mail.bbs-erfurt.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.bbs-erfurt.de

Certificate chain
  • mail.bbs-erfurt.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption
Subject
Common Name (CN)
  • mail.bbs-erfurt.de
Alternative Names
  • autoconfig.bbs-erfurt.de
  • autodiscover.bbs-erfurt.de
  • mail.bbs-erfurt.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2020-12-09
Not valid after
2021-03-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
E0:EF:19:77:CF:11:CB:EE:8D:76:C6:27:EE:9F:40:96:4B:E9:A7:71:5C:A2:C2:F4:78:E8:2C:61:40:DC:F8:61
SHA1
FC:F4:2B:87:FF:EB:55:E3:2F:23:0A:F9:9E:13:36:EF:0B:B0:23:34
X509v3 extensions
subjectKeyIdentifier
  • 86:50:9D:41:34:32:6A:88:88:6C:9F:DE:05:6B:FA:AA:AA:07:9B:66
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
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Dec 9 17:58:00.045 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:79:BF:78:EE:1D:A5:6B:12:80:47:0D:3F:
  • 3A:F9:DF:46:14:7E:0C:85:33:DB:6B:D9:99:55:AC:6F:
  • 43:1C:0A:2C:02:20:76:88:3B:75:6D:8D:7D:DC:3B:9F:
  • E5:07:35:DA:09:77:73:CE:34:17:64:09:46:6C:F9:DF:
  • 20:BD:D6:90:1E:39
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Dec 9 17:58:00.095 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D6:C8:EF:FA:D5:1D:01:02:41:12:84:
  • E4:7A:98:7C:C0:74:73:A0:18:B8:4E:AF:E6:DA:E8:03:
  • D6:E1:9E:C7:25:02:21:00:CC:45:FB:DF:F3:EE:B4:E2:
  • 0E:B3:30:7C:1C:77:1F:92:1E:FE:B2:AC:86:57:DF:24:
  • 81:16:2A:0E:2A:E5:DA:84

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.bbs-erfurt.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid