SSL-Tools

SSL check results of smtp.mailspons.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for smtp.mailspons.com 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, 26 Jan 2021 14:31:06 +0000

We can not guarantee a secure connection to the mailservers of smtp.mailspons.com!

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

/mailservers/smtp.mailspons.com

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.mailspons.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.mailspons.com
37.97.245.68
 -
supported
maillab.io
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
14 s
smtp.mailspons.com
2a01:7c8:fffa:134::1
Results incomplete
- not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
5 s

Outgoing Mails

We have not received any emails from a @smtp.mailspons.com address so far. Test mail delivery

Certificates

First seen at:

CN=maillab.io

Certificate chain
Subject
Common Name (CN)
  • maillab.io
Alternative Names
  • api.maillab.io
  • api.mailspons.com
  • localhost.maillab.io
  • localhost.mailspons.com
  • mail.maillab.io
  • mail.mailspons.com
  • maillab.io
  • mailspons.com
  • pop.maillab.io
  • pop.mailspons.com
  • smtp.maillab.io
  • smtp.mailspons.com
  • www.maillab.io
  • www.mailspons.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-11-30
Not valid after
2021-02-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
0A:BC:2D:3A:6D:0A:1A:34:23:CA:28:0F:FE:45:8D:DF:66:72:79:B1:02:D3:CA:39:D2:56:B7:AE:13:92:38:C9
SHA1
AE:8F:77:8D:DB:3C:92:C4:27:E2:22:33:6E:C9:1C:82:66:0B:31:92
X509v3 extensions
subjectKeyIdentifier
  • 99:FD:3B:6A:EB:E3:EB:7E:4B:2C:6D:A1:00:E1:4E:9B:52:C5:9D:4E
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 : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
  • D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
  • Timestamp : Nov 30 02:35:59.730 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:21:10:C2:3C:AD:D1:CB:F2:C1:83:96:1C:
  • ED:76:D9:10:97:FC:D6:B9:EB:BA:95:FA:79:53:5F:7F:
  • A4:21:6D:62:02:21:00:F3:61:20:7C:B9:E1:2B:A1:8B:
  • 02:AB:81:D3:BD:FA:8D:28:2A:63:AE:CE:F4:A2:DE:B8:
  • D3:33:6A:E8:E1:EC:C1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Nov 30 02:36:00.221 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5F:2D:2C:4D:A6:AD:09:C2:28:F6:8A:F7:
  • 84:A7:79:DB:A3:82:8F:D1:00:37:E0:45:C3:A9:DE:99:
  • D3:A8:40:5A:02:20:71:32:01:15:59:97:CA:2F:72:8E:
  • 04:8F:C0:16:A3:07:C1:4F:27:CC:9C:D7:A5:6D:38:1C:
  • 75:2F:15:F3:D2:B6