SSL check results of netcup.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for netcup.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 Tue, 28 Sep 2021 18:37:18 +0000

We can not guarantee a secure connection to the mailservers of netcup.de!

Please contact the operator of netcup.de and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/netcup.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.netcup.net
2a03:4000:0:1::e1aa
10
supported
*.netcup.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
smtp.netcup.net
46.38.225.170
10
supported
*.netcup.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
backupmx-fra1.netcup.net
2a03:4001:0:104::29
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
backupmx-fra1.netcup.net
188.68.63.41
20
supported
*.netcup.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.netcup.net

Certificate chain
Subject
Common Name (CN)
  • *.netcup.net
Alternative Names
  • *.netcup.net
  • netcup.net
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Common Name (CN)
  • RapidSSL TLS DV RSA Mixed SHA256 2020 CA-1
validity period
Not valid before
2020-11-04
Not valid after
2021-11-04
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BA:25:94:1E:FF:40:FB:7F:EB:57:20:52:2E:80:D9:E1:32:F8:D7:B0:E0:65:66:F4:56:E6:7A:41:F7:EF:41:13
SHA1
70:95:9B:50:01:F8:A3:52:8C:A7:0E:A7:74:FD:DB:BE:CC:04:C5:58
X509v3 extensions
authorityKeyIdentifier
  • keyid:A4:8D:E5:BE:7C:79:E4:70:23:6D:2E:29:34:AD:23:58:DC:F5:31:7F
subjectKeyIdentifier
  • 12:22:83:56:25:AC:A5:96:07:8D:5D:C7:45:FC:E6:AF:47:EE:F9:65
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/RapidSSLTLSDVRSAMixedSHA2562020CA-1.crl
  • Full Name:
  • URI:http://crl4.digicert.com/RapidSSLTLSDVRSAMixedSHA2562020CA-1.crl
certificatePolicies
  • Policy: 2.16.840.1.114412.1.2
  • CPS: https://www.digicert.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/RapidSSLTLSDVRSAMixedSHA2562020CA-1.crt
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 : Nov 4 11:08:20.794 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E8:7D:CE:02:A5:0A:E9:CF:A8:A3:E6:
  • BC:A1:56:75:F5:83:35:CC:CE:5D:26:63:58:1B:FA:D1:
  • F6:E0:88:9C:F8:02:20:7D:96:E0:B1:1C:AE:BC:A9:1A:
  • C8:71:8E:B2:5A:92:69:9D:83:34:A0:57:FB:FE:AA:8B:
  • 1C:D8:65:98:79:46:76
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
  • 37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
  • Timestamp : Nov 4 11:08:20.891 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:BE:80:CC:00:55:85:1A:59:58:ED:03:
  • 86:2B:57:0F:66:BA:4F:8D:F9:E9:1C:0C:79:9A:BA:E9:
  • D3:FD:87:44:4F:02:20:3C:E8:CB:61:E4:1E:F4:91:BA:
  • 66:D2:41:45:50:05:62:51:0B:5F:34:90:0B:3D:18:6C:
  • B2:25:22:6F:AA:F6:EF