SSL-Tools

SSL check results of gandi.net

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Discover if the mail servers for gandi.net 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, 09 Sep 2025 00:54:50 +0000

The mailservers of gandi.net can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @gandi.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail12.gandi.net
2001:4b98:dc4:5:ae1f:6bff:fe2d:9fdc
 10
supported
pop.gandi.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail12.gandi.net
217.70.182.73
 10
supported
pop.gandi.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s
mail8.gandi.net
2001:4b98:dc2:90:217:70:186:186
Results incomplete
30
supported
mail8.gandi.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mail8.gandi.net
217.70.186.186
Results incomplete
30
supported
mail8.gandi.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=pop.gandi.net

Certificate chain
Subject
Common Name (CN)
  • pop.gandi.net
Alternative Names
  • pop.gandi.net
  • mail10.gandi.net
  • mail12.gandi.net
  • mail4.gandi.net
  • mail8.gandi.net
  • smtp.gandi.net
Issuer
Country (C)
  • FR
Organization (O)
  • Gandi
Common Name (CN)
  • Gandi RSA Domain Validation Secure Server CA 3
validity period
Not valid before
2025-07-03
Not valid after
2026-07-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B4:06:C8:4E:2A:77:E2:4E:C1:0F:2E:96:1F:80:A2:57:97:BC:ED:3D:DA:CC:D7:A6:7D:A8:FC:49:5A:44:49:AA
SHA1
05:DD:F1:BB:8F:BC:C8:90:0D:DF:4C:2C:AF:78:E3:F7:2A:E3:F6:B7
X509v3 extensions
authorityKeyIdentifier
  • keyid:81:11:92:DE:66:32:A5:B0:5B:33:3D:65:43:85:FC:D4:04:2D:F1:AE
subjectKeyIdentifier
  • AE:56:94:E7:F9:71:6D:5B:E3:5B:75:04:1D:58:98:D5:ED:33:DC:74
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.2.26
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • CA Issuers - URI:http://crt.sectigo.com/GandiRSADomainValidationSecureServerCA3.crt
  • OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
  • B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
  • Timestamp : Jul 3 12:16:09.173 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:37:E8:C1:EF:A2:14:1D:88:AA:CB:B4:A8:
  • 30:15:6C:B5:70:51:5A:28:3B:CA:8C:5F:17:1D:FA:5F:
  • 8A:4A:F6:BC:02:21:00:C1:58:A0:22:1C:06:39:2B:BE:
  • B8:C1:38:64:0D:65:2B:34:A5:EF:A0:8B:E8:C9:CE:0D:
  • 8A:CF:C0:9D:05:E0:CF
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11:
  • 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3
  • Timestamp : Jul 3 12:16:09.125 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8D:01:B3:7E:18:69:80:AF:F8:A5:E0:
  • 99:E5:B4:80:3A:89:6D:3C:43:55:3F:2D:4E:94:6A:1F:
  • BB:F0:02:38:F4:02:21:00:9A:0C:CA:CB:E2:2C:63:4C:
  • C9:22:3D:D0:99:F9:85:A9:C4:E7:96:98:A8:47:DC:CB:
  • 7D:C9:D1:A4:E5:15:04:D1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Jul 3 12:16:09.061 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:68:F9:8B:60:33:79:FA:38:D2:1E:F0:54:
  • 41:4D:15:89:8B:8B:38:7A:C1:6D:1B:22:0F:50:03:17:
  • B9:F2:C4:E7:02:21:00:BE:44:1F:4A:E6:21:3A:A8:F1:
  • 79:13:8C:CB:3D:26:F2:F2:B5:6C:00:13:02:11:43:05:
  • 8A:8B:DC:1E:2B:36:3A
First seen at:

CN=mail8.gandi.net

Certificate chain
  • mail8.gandi.net
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      GandiCert
Subject
Common Name (CN)
  • mail8.gandi.net
Alternative Names
  • mail8.gandi.net
Issuer
Country (C)
  • FR
Organization (O)
  • Gandi SAS
Common Name (CN)
  • GandiCert
validity period
Not valid before
2025-06-04
Not valid after
2026-07-05
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
DC:D0:00:B2:6C:76:E2:F8:84:5C:99:D7:F7:ED:3C:BD:C3:4A:A7:A1:0B:97:23:59:E7:DF:66:25:4A:5D:33:59
SHA1
3E:D9:0E:0F:E3:1B:39:4F:F4:D7:C4:5A:02:EE:8F:D3:47:51:06:82
X509v3 extensions
authorityKeyIdentifier
  • keyid:BA:BB:46:88:45:EC:DD:5A:2B:18:C5:D1:4E:EC:E3:3C:06:52:53:AC
subjectKeyIdentifier
  • E3:9E:42:25:CF:ED:7B:F3:2C:FC:C2:9B:CA:EA:50:E1:F3:F4:7C:4A
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/GandiCert.crl
  • Full Name:
  • URI:http://crl4.digicert.com/GandiCert.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/GandiCert.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Jun 4 11:56:09.814 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:C8:6D:F3:59:A1:2A:A6:09:38:4B:15:
  • 77:7E:AC:1C:3A:A3:D0:7D:68:0C:0F:5C:17:D0:4B:BB:
  • 53:5E:69:DE:AD:02:20:00:80:30:9E:1C:FD:C4:DC:B1:
  • 38:0E:6D:BA:C9:07:BD:C5:13:F3:76:36:A9:35:D3:62:
  • 2E:D2:18:0D:CD:0C:87
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Jun 4 11:56:09.739 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:89:1D:45:68:D0:BC:D1:78:21:FC:94:
  • 86:74:62:54:62:EC:FD:0C:92:91:9E:CC:31:0F:D2:6B:
  • 5A:FA:51:2C:BF:02:21:00:E5:A4:79:C2:53:CD:BD:D7:
  • C2:61:4C:2B:2D:65:38:46:59:A1:68:D7:AB:2F:A2:08:
  • 6A:40:88:98:AF:16:64:07
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Jun 4 11:56:09.762 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E6:FC:0D:07:40:29:C3:60:00:93:93:
  • 23:8A:35:C2:EB:07:68:43:4A:B2:58:DE:5C:56:E6:21:
  • E1:7D:E3:06:72:02:21:00:98:5B:3A:43:FE:F3:27:E1:
  • 33:9A:87:10:76:3D:03:79:3B:BE:F2:A8:ED:F3:FA:6D:
  • C9:49:32:A1:32:28:25:37