SSL check results of imap.skymail.de

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Discover if the mail servers for imap.skymail.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

Report created Fri, 08 Mar 2024 18:23:41 +0000

The mailservers of imap.skymail.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @imap.skymail.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
skymail.de
46.4.105.4
10
supported
*.skymail.de
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 @imap.skymail.de address so far. Test mail delivery

Certificates

First seen at:

CN=*.skymail.de

Certificate chain
Subject
Common Name (CN)
  • *.skymail.de
Alternative Names
  • *.skymail.de
  • skymail.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • AlphaSSL CA - SHA256 - G4
validity period
Not valid before
2024-01-13
Not valid after
2025-02-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A0:EC:17:5A:CE:FA:ED:93:2C:37:4A:46:93:82:AE:9E:F4:38:7F:6A:BF:70:D9:3A:2A:53:15:F8:DD:66:52:7C
SHA1
47:CD:EF:D9:37:23:8D:EF:AA:05:DA:5E:3F:2E:CA:03:0D:35:4E:13
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/alphasslcasha256g4.crt
  • OCSP - URI:http://ocsp.globalsign.com/alphasslcasha256g4
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.4146.10.1.3
  • CPS: https://www.globalsign.com/repository/
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/alphasslcasha256g4.crl
authorityKeyIdentifier
  • keyid:4F:CB:AC:A8:C2:EF:AB:DD:83:6F:6B:BF:CE:98:3D:5C:58:25:76:15
subjectKeyIdentifier
  • 04:CC:E9:ED:E9:D4:DD:02:37:66:2F:E1:EC:D7:06:A9:F1:2D:4A:6C
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Jan 13 13:44:06.988 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:BB:BB:1C:1B:8F:80:93:EF:81:29:9F:
  • A8:9C:31:79:84:3C:DD:1D:97:9B:9F:01:68:1C:71:31:
  • 50:88:93:23:ED:02:21:00:B7:23:CD:0D:90:D2:DC:4F:
  • B2:78:67:2E:0A:48:E3:08:33:69:07:42:B8:3F:F5:1F:
  • 89:0A:38:2E:B3:6C:CA:91
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : Jan 13 13:44:06.960 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:56:DB:A2:2B:25:93:FE:71:4C:6E:E4:D2:
  • 35:BC:AC:E3:44:77:F6:44:A3:B8:BA:58:40:7E:09:1D:
  • 6A:0E:C1:7A:02:21:00:9C:41:D9:2E:3B:77:81:F3:94:
  • FF:CF:B4:17:76:BA:28:32:A9:F9:F1:19:01:9A:53:A1:
  • 48:F9:DB:4E:95:0D:71
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
  • 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
  • Timestamp : Jan 13 13:44:06.920 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:CC:1B:86:2A:89:31:A0:28:A5:F3:18:
  • 30:79:A2:F5:B5:5A:0C:E8:72:0A:5C:B3:A4:29:80:E0:
  • 28:F9:7B:C5:05:02:20:2B:FD:59:A9:B4:E6:04:35:D7:
  • B2:E4:EC:07:5E:40:B1:0B:65:B4:BD:A2:1B:32:58:D2:
  • EE:5D:ED:8C:66:80:16

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.skymail.de
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-512 Hash
error
Debug
valid
_25._tcp.skymail.de
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-256 Hash
error
Debug
valid
_25._tcp.skymail.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-512 Hash
error
Debug
valid
_25._tcp.skymail.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
error
Debug
valid