SSL-Tools

SSL check results of grechka.family

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Discover if the mail servers for grechka.family 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 Mon, 08 Jun 2020 00:31:46 +0000

The mailservers of grechka.family 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 @grechka.family addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.msk.grechka.family
2001:470:1f09:453:2::5
 10
supported
cube.msk.grechka.family
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
17 s
mail.msk.grechka.family
188.244.32.139
 10
supported
cube.msk.grechka.family
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s
alanine.grechka.family
2001:41d0:401:3100::4964
 20
supported
alanine.grechka.family
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
alanine.grechka.family
137.74.192.171
 20
supported
alanine.grechka.family
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 @grechka.family address so far. Test mail delivery

Certificates

First seen at:

CN=cube.msk.grechka.family

Certificate chain
Subject
Common Name (CN)
  • cube.msk.grechka.family
Alternative Names
  • cube.msk.grechka.family
  • imap.grechka.family
  • mail.msk.grechka.family
  • msk.grechka.family
  • pbx.grechka.family
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-28
Not valid after
2020-08-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
E0:0F:42:19:3A:39:B2:BE:FB:58:40:CD:43:1B:31:44:82:F8:E0:C6:C1:17:AF:4E:EF:C0:32:18:8C:B8:F2:01
SHA1
6A:95:3F:B5:DA:15:B6:5E:75:BE:4B:B1:B9:3B:B4:3F:0A:77:19:DA
X509v3 extensions
subjectKeyIdentifier
  • 39:66:9A:D4:86:F6:13:50:7D:92:AD:57:99:41:97:F2:67:C0:7E:16
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 : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : May 28 18:52:42.327 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D1:3D:3E:11:AE:D0:94:D5:45:3E:F7:
  • 52:07:75:B5:F5:57:F3:FC:88:E4:CB:DF:5E:E2:17:A1:
  • EA:05:62:13:E0:02:20:05:2C:EC:02:90:50:36:C3:0D:
  • 37:14:5B:A8:E6:94:C1:7C:2B:67:F3:B1:AB:9A:F8:DA:
  • 50:C4:AF:DB:33:8E:26
  • 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 28 18:52:42.366 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:54:65:1C:45:C3:58:33:B7:22:16:84:0E:
  • 18:CA:A2:D1:BF:7F:8B:5A:A9:80:0A:92:BB:06:F6:B6:
  • 13:C8:01:F8:02:20:7B:EB:95:0E:78:B2:65:21:7E:DE:
  • 86:76:5C:7B:C1:6A:E2:7A:AD:F6:AD:70:08:6D:06:F9:
  • D9:17:E7:BB:32:B4
First seen at:

CN=alanine.grechka.family

Certificate chain
Subject
Common Name (CN)
  • alanine.grechka.family
Alternative Names
  • alanine.grechka.family
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2019-02-27
Not valid after
2019-05-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
30:38:ED:3F:B6:1E:EC:87:19:69:4D:9F:8B:15:FD:5C:7C:3A:FF:37:78:14:72:26:BC:32:0D:5E:60:08:2E:48
SHA1
E1:A3:DF:B2:27:D6:D1:2E:A7:6E:59:2D:58:ED:E9:A4:71:FB:4E:A1
X509v3 extensions
subjectKeyIdentifier
  • AD:5E:F5:83:78:7B:B5:98:0C:8B:A2:E5:C8:77:F2:CA:4E:42:12:0D
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 : 74:7E:DA:83:31:AD:33:10:91:21:9C:CE:25:4F:42:70:
  • C2:BF:FD:5E:42:20:08:C6:37:35:79:E6:10:7B:CC:56
  • Timestamp : Feb 27 16:25:49.849 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:85:E6:9D:F8:96:0E:7D:27:E6:A4:3D:
  • 24:28:12:8F:70:46:E2:A7:1F:71:F9:44:39:08:1A:F8:
  • B6:88:AA:1A:2B:02:20:11:B4:1D:9B:0F:FB:A2:F7:B0:
  • FE:E4:5F:92:76:FC:14:FA:7D:AD:41:67:B1:7C:C5:46:
  • F8:19:E6:A4:AE:53:B4
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 29:3C:51:96:54:C8:39:65:BA:AA:50:FC:58:07:D4:B7:
  • 6F:BF:58:7A:29:72:DC:A4:C3:0C:F4:E5:45:47:F4:78
  • Timestamp : Feb 27 16:25:49.849 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:09:B6:F4:6E:9F:D6:59:6B:D0:59:29:F9:
  • FC:24:DD:8F:17:7C:70:09:6E:26:19:3C:88:53:A6:E3:
  • 32:EA:37:86:02:21:00:CC:51:EA:E3:5C:14:33:E8:F9:
  • 96:40:AD:0B:F2:BE:52:44:9F:53:AE:DA:FE:08:21:6D:
  • 50:8C:FB:4D:15:D5:3E