SSL-Tools

SSL check results of zoho.com

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Discover if the mail servers for zoho.com 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 Sat, 23 Apr 2022 19:31:33 +0000

The mailservers of zoho.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @zoho.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtpin.zoho.com
136.143.191.23
 10
supported
*.zoho.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
smtpin2.zoho.com
136.143.183.23
 20
supported
*.zoho.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
smtpin3.zoho.com
136.143.191.23
 50
supported
*.zoho.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 received emails from these servers with @zoho.com sender addresses. Test mail delivery

Host TLS Version & Cipher
new333.pserver.ru (80.85.159.135)
Insecure - not encrypted!

Certificates

First seen at:

CN=*.zoho.com

Certificate chain
Subject
Common Name (CN)
  • *.zoho.com
Alternative Names
  • *.zoho.com
  • zoho.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • Thawte TLS RSA CA G1
validity period
Not valid before
2022-02-03
Not valid after
2023-02-25
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
1E:B1:35:35:CA:74:CE:90:83:86:09:EA:F8:86:A0:49:59:7D:DA:2F:CE:0B:F7:A1:78:3C:FB:BA:6D:3B:D1:45
SHA1
D8:53:79:19:A8:03:26:0E:F3:3C:EA:14:A5:CE:C8:D0:BA:C2:4D:0D
X509v3 extensions
authorityKeyIdentifier
  • keyid:A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
subjectKeyIdentifier
  • 0C:09:80:18:82:2A:04:48:8E:45:8F:2E:CB:69:4C:D0:38:43:BE:48
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.thawte.com/ThawteTLSRSACAG1.crl
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://status.thawte.com
  • CA Issuers - URI:http://cacerts.thawte.com/ThawteTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
  • 03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
  • Timestamp : Feb 3 06:40:14.654 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:7E:10:C0:F7:5B:2F:33:9A:E9:7E:73:95:
  • 86:4E:B8:8E:60:79:6A:41:B6:CE:E7:CB:2E:82:90:28:
  • E2:22:18:97:02:20:61:94:29:F5:E4:82:E4:0C:7A:89:
  • F4:65:A9:62:F1:13:9A:8C:C7:76:F5:F3:00:5C:1C:C1:
  • 75:99:77:AA:64:13
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 35:CF:19:1B:BF:B1:6C:57:BF:0F:AD:4C:6D:42:CB:BB:
  • B6:27:20:26:51:EA:3F:E1:2A:EF:A8:03:C3:3B:D6:4C
  • Timestamp : Feb 3 06:40:14.617 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:34:A8:79:77:23:4C:CF:8B:60:D6:61:D6:
  • 7F:54:BD:49:99:B3:98:23:BE:D6:E3:80:2F:CE:32:DB:
  • FD:CD:67:4D:02:20:5A:BB:A3:DB:58:98:51:68:08:C8:
  • AE:5A:4E:73:09:B0:E9:9B:54:3F:C1:81:09:E2:3A:79:
  • 04:E8:93:F4:FE:D4
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
  • 4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
  • Timestamp : Feb 3 06:40:14.682 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:68:86:26:23:1F:F7:75:03:94:0E:9E:55:
  • D6:68:47:46:ED:03:DA:E2:2D:D9:4B:C9:2F:89:00:76:
  • 14:36:0E:21:02:21:00:82:10:10:E2:98:92:64:FF:AC:
  • 54:7A:D1:E2:78:A1:C4:37:3A:AB:96:44:9D:AC:EC:94:
  • 8F:D3:9E:5C:ED:34:49