SSL-Tools

SSL check results of cppr.in

NEW You can also bulk check multiple servers.

Discover if the mail servers for cppr.in 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, 28 Jul 2020 15:09:45 +0000

The mailservers of cppr.in can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cppr.in addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
aspmx.l.google.com
2a00:1450:4013:c03::1a
 1
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
aspmx.l.google.com
173.194.69.27
 1
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
alt2.aspmx.l.google.com
2404:6800:4008:c00::1b
 5
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s
alt2.aspmx.l.google.com
108.177.97.27
 5
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s
alt1.aspmx.l.google.com
2404:6800:4003:c06::1a
 5
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
18 s
alt1.aspmx.l.google.com
142.250.4.27
 5
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s
alt4.aspmx.l.google.com
2607:f8b0:4003:c0f::1b
 10
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s
alt4.aspmx.l.google.com
173.194.70.27
 10
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
alt3.aspmx.l.google.com
2607:f8b0:400e:c04::1a
 10
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
alt3.aspmx.l.google.com
74.125.28.27
 10
supported
mx.google.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx.google.com,O=Google LLC,L=Mountain View,ST=California,C=US

Certificate chain
  • mx.google.com
    • remaining
    • 256 bit
    • sha256WithRSAEncryption
      • GTS CA 1O1
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • GlobalSign (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption
Subject
Country (C)
  • US
State (ST)
  • California
Locality (L)
  • Mountain View
Organization (O)
  • Google LLC
Common Name (CN)
  • mx.google.com
Alternative Names
  • mx.google.com
  • alt1.aspmx.l.google.com
  • alt1.gmail-smtp-in.l.google.com
  • alt1.gmr-smtp-in.l.google.com
  • alt2.aspmx.l.google.com
  • alt2.gmail-smtp-in.l.google.com
  • alt2.gmr-smtp-in.l.google.com
  • alt3.aspmx.l.google.com
  • alt3.gmail-smtp-in.l.google.com
  • alt3.gmr-smtp-in.l.google.com
  • alt4.aspmx.l.google.com
  • alt4.gmail-smtp-in.l.google.com
  • alt4.gmr-smtp-in.l.google.com
  • aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx3.googlemail.com
  • aspmx4.googlemail.com
  • aspmx5.googlemail.com
  • gmail-smtp-in.l.google.com
  • gmr-mx.google.com
  • gmr-smtp-in.l.google.com
  • mx1.smtp.goog
  • mx2.smtp.goog
  • mx3.smtp.goog
  • mx4.smtp.goog
Issuer
Country (C)
  • US
Organization (O)
  • Google Trust Services
Common Name (CN)
  • GTS CA 1O1
validity period
Not valid before
2020-07-07
Not valid after
2020-09-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
AD:32:45:13:AB:E5:45:9B:71:A9:09:1A:0B:9E:88:F0:D4:B2:9E:4F:DB:36:C1:5C:3F:8E:4E:C0:50:52:48:56
SHA1
8F:45:46:06:B3:0B:21:1D:19:BC:6D:24:C0:3C:5A:89:E6:C5:CE:D6
X509v3 extensions
subjectKeyIdentifier
  • F4:E9:80:96:FC:B6:02:A3:EB:1C:D3:8A:DF:3B:01:D3:D8:92:ED:1C
authorityKeyIdentifier
  • keyid:98:D1:F8:6E:10:EB:CF:9B:EC:60:9F:18:90:1B:A0:EB:7D:09:FD:2B
authorityInfoAccess
  • OCSP - URI:http://ocsp.pki.goog/gts1o1core
  • CA Issuers - URI:http://pki.goog/gsr2/GTS1O1.crt
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • Policy: 1.3.6.1.4.1.11129.2.5.3
crlDistributionPoints
  • Full Name:
  • URI:http://crl.pki.goog/GTS1O1core.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Jul 7 09:08:40.389 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8D:CF:BC:5D:8D:62:9E:73:18:16:09:
  • 12:7B:40:A5:A7:55:B1:24:90:80:3C:DF:56:57:21:A9:
  • 2E:FF:36:F1:19:02:21:00:A3:84:4A:93:BD:F8:EC:BD:
  • 55:89:C0:F3:C2:CD:4E:9A:B1:E4:9D:AD:02:BC:A3:D4:
  • 7D:55:3E:EC:B3:6B:78:53
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Jul 7 09:08:40.418 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2E:2C:4D:31:D2:1E:DD:AE:BB:15:75:4C:
  • FC:04:78:0F:6E:5E:CA:A9:0E:45:1B:A4:44:02:69:06:
  • 6B:60:CF:C6:02:21:00:A5:71:30:69:02:5F:3C:79:04:
  • 24:DD:9C:30:D8:EF:9C:3B:0D:51:6A:EF:8C:44:D5:A2:
  • 92:FC:D2:F9:83:9E:C1