SSL-Tools

SSL check results of gustavo.im

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Discover if the mail servers for gustavo.im 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 Fri, 21 Mar 2025 06:26:41 +0000

We can not guarantee a secure connection to the mailservers of gustavo.im!

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

/mailservers/gustavo.im

Servers

Incoming Mails

These servers are responsible for incoming mails to @gustavo.im addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.zohomail.com
136.143.183.44
 1
supported
*.zoho.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx0.123-reg.co.uk
92.204.80.0
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx1.123-reg.co.uk
92.204.80.3
Results incomplete
20
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx2.zohomail.com
204.141.33.44
 20
supported
*.zoho.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mx2.zohomail.com
204.141.43.44
 20
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 not received any emails from a @gustavo.im address so far. Test mail delivery

Certificates

First seen at:

CN=*.zoho.com

Certificate chain
  • *.zoho.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
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
2025-01-11
Not valid after
2026-01-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4E:78:7B:C7:DF:DA:B3:CD:BE:04:1A:FD:F9:7C:95:B3:5C:C4:57:21:81:E1:77:71:0F:1D:23:D6:E8:C7:EC:7B
SHA1
F8:98:55:B0:6E:88:FD:D9:84:33:FB:76:68:45:FC:4D:6B:B5:3D:DE
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
  • 9F:1E:0B:00:6D:54:E0:50:F7:19:B8:0C:D7:C9:64:04:CA:85:D0:87
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.thawte.com/ThawteTLSRSACAG1.crl
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 : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77:
  • E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6
  • Timestamp : Jan 11 13:30:06.561 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:EC:7C:84:AF:DD:BA:1D:D2:BB:C6:D5:
  • D7:93:89:01:04:31:5C:F9:3C:78:34:B5:29:C1:0F:29:
  • 35:6D:33:90:3B:02:21:00:A6:47:0B:91:8E:13:BF:1F:
  • 2B:CD:9C:A8:85:6B:B9:D5:2A:D7:44:21:CC:E4:58:16:
  • 00:59:82:62:AC:90:A9:B7
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB:
  • 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0
  • Timestamp : Jan 11 13:30:06.569 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9D:03:85:EB:10:0B:22:CF:37:EF:0D:
  • 05:51:3D:43:32:41:D9:2B:51:CE:6B:2D:F1:89:01:D6:
  • 2E:58:67:69:E4:02:21:00:CE:02:46:33:D8:B8:34:B7:
  • 0A:67:4D:83:F8:01:02:E1:97:67:9A:70:E7:29:09:73:
  • B1:A5:F3:8B:87:CF:4D:4E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8:
  • 5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3
  • Timestamp : Jan 11 13:30:06.590 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:54:45:F8:95:FE:2F:34:42:6B:37:52:E3:
  • 27:A6:ED:E8:83:B6:C4:E7:CB:AD:0D:DF:8F:11:BE:71:
  • 8D:54:F4:30:02:21:00:CB:39:4B:55:80:2E:EE:F3:42:
  • 4C:8B:FF:8E:7A:79:1E:19:6C:FA:D3:4A:C8:4F:E1:76:
  • F0:86:E9:A1:EA:A5:83