SSL check results of barmbek.eu

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Discover if the mail servers for barmbek.eu 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

Report created Tue, 27 Jul 2021 13:02:38 +0000

The mailservers of barmbek.eu can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @barmbek.eu addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.barmbek.eu
2a01:4f8:c010:97c6::1
10
supported
mx1.barmbek.eu
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx1.barmbek.eu
168.119.249.52
10
supported
mx1.barmbek.eu
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx1.barmbek.eu

Certificate chain
  • mx1.barmbek.eu
    • remaining
    • 256 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption

Subject
Common Name (CN)
  • mx1.barmbek.eu
Alternative Names
  • mx1.barmbek.eu
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-07-23
Not valid after
2021-10-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D6:C4:67:DB:30:23:C2:A3:D7:57:69:52:30:6B:0A:9A:89:8B:06:76:54:B7:88:58:51:87:4C:9A:90:74:8F:25
SHA1
DE:6A:CE:90:02:E4:3E:A4:4B:BB:29:B6:1F:E5:84:94:3C:DF:06:DA
X509v3 extensions
subjectKeyIdentifier
  • 1C:80:8F:16:79:9C:03:5A:AE:03:79:8A:56:93:57:B7:FD:D7:DF:56
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 : 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 : Jul 23 19:45:30.034 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:7B:F0:DF:02:9E:5D:76:15:9F:8E:A0:27:
  • 58:0F:80:65:57:07:FB:E6:25:34:C7:B9:D3:4D:4A:97:
  • 22:5E:21:04:02:20:54:8F:C6:1F:54:E3:5D:6D:56:2A:
  • E1:1B:9E:1E:10:F3:51:29:74:06:F9:09:DD:FB:66:98:
  • FA:F0:2C:10:8F:B5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Jul 23 19:45:30.091 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E2:08:3C:64:3E:E7:AE:76:2C:53:F9:
  • 19:4B:20:10:E8:1D:F7:C4:85:62:4B:C7:EA:01:E4:52:
  • DC:82:03:DD:2E:02:20:05:49:36:6D:10:C9:FD:56:02:
  • 0C:57:C4:44:51:FC:F9:5E:AF:BF:42:EF:D4:DA:D9:D3:
  • 43:11:09:4D:87:87:8E

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.mx1.barmbek.eu
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mx1.barmbek.eu
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-512 Hash
valid
valid
_25._tcp.mx1.barmbek.eu
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-512 Hash
valid
_25._tcp.mx1.barmbek.eu
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid