SSL-Tools

SSL check results of smtp.centurylink.net

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Discover if the mail servers for smtp.centurylink.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 Thu, 01 Aug 2024 20:47:53 +0000

The mailservers of smtp.centurylink.net can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.centurylink.net
209.67.129.100
 -
supported
mail.centurylink.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.centurylink.net,O=Lumen Technologies\, Inc.,L=Monroe,ST=Louisiana,C=US

Certificate chain
Subject
Country (C)
  • US
State (ST)
  • Louisiana
Locality (L)
  • Monroe
Organization (O)
  • Lumen Technologies, Inc.
Common Name (CN)
  • mail.centurylink.net
Alternative Names
  • mail.centurylink.net
  • pop.centurylink.net
  • smtp.centurylink.net
  • mx.centurylink.net
  • smtp.embarqmail.com
  • pop.embarqmail.com
  • m.mail.centurylink.net
  • webmail.centurylink.net
  • mail.embarqmail.com
  • imap.embarqmail.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Common Name (CN)
  • DigiCert Global G2 TLS RSA SHA256 2020 CA1
validity period
Not valid before
2023-09-27
Not valid after
2024-10-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
70:86:59:7E:DB:2E:A1:13:D0:BE:8D:A4:53:43:8C:00:65:FB:79:7D:28:7A:70:29:C3:D9:6B:34:68:03:09:49
SHA1
C1:38:0A:07:01:40:46:39:C7:D3:E2:97:C3:07:32:BD:E3:72:9A:0B
X509v3 extensions
authorityKeyIdentifier
  • keyid:74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
  • 8E:AF:AD:85:35:99:A9:E1:3C:C7:43:29:E7:75:35:8E:6E:D5:EA:AA
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
  • Full Name:
  • URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Sep 27 20:20:52.007 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:91:69:FB:25:67:53:0C:0D:31:53:4C:
  • DC:3E:34:24:F1:FF:01:9A:13:37:39:A7:4E:4A:8B:AC:
  • 4E:C1:98:49:07:02:21:00:AF:8D:8D:9B:77:12:D2:CE:
  • 57:E4:E3:55:07:5A:09:B4:DB:B6:98:CF:43:AB:DC:66:
  • 44:16:70:1C:49:12:39:4A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Sep 27 20:20:51.959 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:47:FF:EC:86:F2:F9:32:92:B2:56:6D:10:
  • F4:41:9E:F7:66:7D:AF:BD:1F:79:B6:1B:D4:25:62:2F:
  • 03:F9:A6:5D:02:20:30:FF:D7:06:0F:76:CC:F0:AE:F5:
  • 46:05:A6:AA:1B:16:97:71:78:D6:B4:C2:FC:6B:9C:95:
  • B3:F0:A3:85:C2:A3
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Sep 27 20:20:51.910 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:3B:B8:A1:5A:12:87:B9:BC:20:D8:34:A9:
  • FE:97:53:40:5E:79:BB:F0:C8:50:D3:D1:9D:17:01:D5:
  • B6:3C:37:DA:02:21:00:B7:55:C1:F6:9C:9A:F5:4C:5A:
  • 32:44:16:F6:4B:DE:0E:4F:00:00:0E:41:37:99:29:20:
  • 19:9F:B1:00:AD:0C:0A