SSL-Tools

SSL check results of rk-mail.net

NEW You can also bulk check multiple servers.

Discover if the mail servers for rk-mail.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, 16 Apr 2024 14:08:52 +0000

The mailservers of rk-mail.net can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @rk-mail.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx02.mail.icloud.com
17.42.251.62
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mx02.mail.icloud.com
17.57.152.5
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx02.mail.icloud.com
17.57.154.33
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx02.mail.icloud.com
17.56.9.31
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx02.mail.icloud.com
17.57.156.30
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mx02.mail.icloud.com
17.57.155.25
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
5 s
mx01.mail.icloud.com
17.42.251.62
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mx01.mail.icloud.com
17.57.152.5
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx01.mail.icloud.com
17.57.154.33
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx01.mail.icloud.com
17.56.9.31
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8 s
mx01.mail.icloud.com
17.57.156.30
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mx01.mail.icloud.com
17.57.155.25
 10
supported
mx01.mail.icloud.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx01.mail.icloud.com,O=Apple Inc.,ST=California,C=US

Certificate chain
Subject
Country (C)
  • US
State (ST)
  • California
Organization (O)
  • Apple Inc.
Common Name (CN)
  • mx01.mail.icloud.com
Alternative Names
  • mx02.mail.icloud.com
  • mx3.mail.icloud.com
  • mx01.mail.icloud.com
Issuer
Common Name (CN)
  • Apple Public Server RSA CA 12 - G1
Organization (O)
  • Apple Inc.
State (ST)
  • California
Country (C)
  • US
validity period
Not valid before
2024-03-12
Not valid after
2025-03-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
13:DD:D0:A8:75:20:55:BE:74:04:33:34:C0:37:56:09:9B:98:BD:F6:4F:42:5E:53:74:F6:DD:C9:64:79:27:F2
SHA1
95:57:D9:71:7D:C5:E0:40:0B:2F:8D:49:30:D8:A8:81:18:B1:0F:E3
X509v3 extensions
authorityKeyIdentifier
  • keyid:1E:5C:17:91:05:57:02:FC:77:5C:E3:70:43:EC:6B:FD:DD:D2:D8:69
authorityInfoAccess
  • CA Issuers - URI:http://certs.apple.com/apsrsa12g1.der
  • OCSP - URI:http://ocsp.apple.com/ocsp03-apsrsa12g101
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: https://www.apple.com/certificateauthority/public
  • Policy: 1.2.840.113635.100.5.11.4
crlDistributionPoints
  • Full Name:
  • URI:http://crl.apple.com/apsrsa12g1.crl
subjectKeyIdentifier
  • F5:4D:4E:A3:87:59:BA:6C:4D:53:B2:9C:83:57:BC:5E:10:00:F9:FE
1_2_840_113635_100_6_86
  • ..
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
  • 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
  • Timestamp : Mar 12 21:41:18.432 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:4F:BE:E4:04:AE:F7:0D:20:DC:6F:B7:A9:
  • 40:67:B0:CC:4C:80:40:DA:9D:31:ED:7D:3B:34:AC:AF:
  • 0F:38:5F:C5:02:21:00:CF:9D:16:A9:0A:20:C3:38:2D:
  • 61:B4:B7:EB:BC:EF:1F:6D:FF:81:34:7D:0C:E1:AD:D6:
  • BC:F5:67:25:AC:6D:3F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Mar 12 21:41:18.398 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DA:46:58:BC:A3:04:4F:5D:71:8B:5E:
  • 84:B0:24:41:48:77:65:46:42:C8:2D:39:C1:D9:DA:CF:
  • 07:C5:58:B4:6B:02:20:4A:C6:C5:FE:19:A4:FF:99:37:
  • D8:3F:56:BF:A0:3C:04:9E:6B:F6:FE:7A:8C:A8:02:14:
  • F7:AE:96:D1:89:E9:1E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Mar 12 21:41:18.526 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1B:6B:49:DB:6A:C1:93:80:A1:28:99:90:
  • B3:37:05:9D:43:32:6E:14:29:FD:81:7E:1D:32:76:AF:
  • 82:F5:E0:E8:02:21:00:8C:B4:E1:69:C0:AD:18:0F:A0:
  • 19:27:68:5E:F1:A8:EF:13:F3:E0:28:3F:7C:60:A9:E5:
  • 95:9A:96:4E:68:19:1A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
  • 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
  • Timestamp : Mar 12 21:41:18.538 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:4B:AD:48:34:0D:DF:66:AD:ED:36:53:A1:
  • F9:C1:A0:50:EC:8C:1F:35:C3:C6:B4:F7:54:96:B4:89:
  • DF:FB:17:FF:02:20:65:74:7B:38:E1:60:2C:79:7A:DD:
  • 93:16:80:CC:37:B8:9E:4C:C4:07:EA:25:2E:BA:2D:D3:
  • 7C:83:15:A1:1E:B5