SSL-Tools

SSL check results of gswcom.biz

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Discover if the mail servers for gswcom.biz 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, 29 Apr 2025 14:18:39 +0000

The mailservers of gswcom.biz can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @gswcom.biz addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail-lp.helimail.de
2001:14f0::dc03:8000:0:37:219
 10
supported
*.helimail.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail-lp.helimail.de
212.37.37.219
 10
supported
*.helimail.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mx1337.helimail.de
2a06:1c0:0:9::4
 200
supported
*.helimail.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mx1337.helimail.de
194.104.114.52
 200
supported
*.helimail.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @gswcom.biz sender addresses. Test mail delivery

Host TLS Version & Cipher
mail.hamcom.de (IPv6:2001:14f0:0:dc03::37:210)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=*.helimail.de

Certificate chain
Subject
Common Name (CN)
  • *.helimail.de
Alternative Names
  • *.helimail.de
  • helimail.de
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • RapidSSL TLS RSA CA G1
validity period
Not valid before
2024-05-31
Not valid after
2025-05-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
8E:22:FE:9F:40:F4:82:43:EC:82:E0:05:6F:B4:8C:5F:DD:3E:64:26:E8:F1:B3:73:73:F0:08:7C:D7:A8:D3:F1
SHA1
EF:D5:88:6E:1B:DD:69:27:B4:3E:27:91:3D:C9:EC:FD:8E:E4:93:0C
X509v3 extensions
authorityKeyIdentifier
  • keyid:0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
  • 58:0F:CA:00:2F:F5:F0:54:86:E3:51:A6:74:6B:F9:D2:4D:00:43:3D
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
  • OCSP - URI:http://status.rapidssl.com
  • CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
ct_precert_scts
  • 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 : May 31 07:15:59.911 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:27:81:13:71:EA:E2:A4:BC:BC:13:AC:0B:
  • D5:3B:44:DC:04:66:6F:66:C1:F3:0E:9A:35:CF:53:C1:
  • BE:C5:F8:B9:02:20:20:5C:F7:54:96:BD:A9:09:7A:DF:
  • B1:08:9F:C0:F2:0C:76:1A:A9:26:8A:CF:1C:EB:91:FE:
  • BC:16:4E:95:4C:7A
  • 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 : May 31 07:15:59.891 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8D:54:CA:FC:FD:6F:0C:61:85:B2:93:
  • 43:4F:FE:2F:1E:56:C1:3C:58:75:29:38:BC:F5:51:82:
  • 98:9B:F5:BC:13:02:20:16:A3:D4:F7:6D:B4:D4:94:9D:
  • 1E:DE:34:B0:A8:EA:71:15:82:4B:94:89:49:BE:93:6A:
  • 00:75:FC:B3:D8:26:66
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : May 31 07:15:59.921 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D0:15:45:69:D1:B5:46:1B:3A:7B:96:
  • 93:00:BD:57:03:BB:16:75:0B:15:A7:4D:FA:24:D1:33:
  • B6:95:AF:DD:06:02:21:00:D5:6D:3A:1F:A8:C4:56:96:
  • 93:2E:B4:3B:FB:D9:BD:51:94:28:62:8B:5A:2B:A5:CB:
  • 04:D8:C9:F0:A0:0A:B0:E6