SSL-Tools

SSL check results of serv01.isp123.de

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Discover if the mail servers for serv01.isp123.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 Tue, 14 Jul 2020 02:27:52 +0000

The mailservers of serv01.isp123.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @serv01.isp123.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
serv01.isp123.de
81.7.10.162
 -
supported
serv01.isp123.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
serv01.isp123.de
2a02:180:1:1::517:aee
 -
supported
serv01.isp123.de
DANE
missing
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 @serv01.isp123.de address so far. Test mail delivery

Certificates

First seen at:

CN=serv01.isp123.de

Certificate chain
Subject
Common Name (CN)
  • serv01.isp123.de
Alternative Names
  • serv01.isp123.de
  • www.serv01.isp123.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-20
Not valid after
2020-08-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
71:DD:2B:C1:BE:1B:1F:70:2D:AF:6C:B7:F3:7E:61:1D:85:FA:69:77:7A:BC:92:3F:C8:33:84:EB:41:B1:23:6E
SHA1
72:B4:47:A5:76:E7:53:84:D3:E5:66:9F:87:E7:F9:87:DA:04:B9:F8
X509v3 extensions
subjectKeyIdentifier
  • 88:DC:5F:6B:25:A5:BD:80:3B:05:42:59:BF:DA:0C:91:12:51:99:61
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : May 20 01:00:19.991 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:99:88:2C:73:8C:50:30:56:DB:F1:DC:
  • 93:0C:88:C1:8F:64:0E:AD:8D:2C:C6:30:5A:C9:31:BE:
  • 58:6E:BC:2A:FD:02:20:27:5B:7E:93:07:76:B6:3B:F0:
  • 58:48:75:3C:B6:6A:86:CB:75:CF:E5:EB:49:69:BE:1F:
  • F8:AD:DC:41:ED:63:60
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : May 20 01:00:19.901 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:80:53:C3:48:36:4D:1A:D4:FA:F6:66:
  • 17:CC:4B:47:CF:82:E0:E0:30:FC:D6:B7:79:83:4F:05:
  • 6E:3E:59:EC:B3:02:20:23:6F:80:65:CC:2B:67:67:A4:
  • EE:A6:B9:80:A9:80:54:AE:09:97:1A:83:B2:4B:E0:5F:
  • B8:DE:ED:CC:65:99:46