SSL-Tools

SSL check results of mail.codecoffin.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for mail.codecoffin.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

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Report created Thu, 23 Apr 2026 00:30:23 +0000

We can not guarantee a secure connection to the mailservers of mail.codecoffin.com!

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

/mailservers/mail.codecoffin.com

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.codecoffin.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.codecoffin.com
2a07:244:38:2c00:91e6:c975:ee5c:3c93
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.codecoffin.com
188.64.38.44
 10
supported
*.mail.codecoffin.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.mail.codecoffin.com

Certificate chain
  • *.mail.codecoffin.com
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
    • Hostname Mismatch
      • E7
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.mail.codecoffin.com
Alternative Names
  • *.mail.codecoffin.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E7
validity period
Not valid before
2026-04-22
Not valid after
2026-07-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
C8:E7:B5:75:84:8B:6C:93:98:2F:84:F2:13:F4:23:05:46:06:75:1B:2C:42:BE:26:8C:A8:22:80:EA:C1:A3:3A
SHA1
32:D6:26:7A:99:CA:BB:E1:B1:D5:0A:2C:7C:C8:FD:23:0A:07:6B:A7
X509v3 extensions
subjectKeyIdentifier
  • 53:F1:91:7F:9F:DD:98:FC:E0:06:5B:09:20:78:C5:5C:7A:20:DC:80
authorityKeyIdentifier
  • keyid:AE:48:9E:DC:87:1D:44:A0:6F:DA:A2:E5:60:74:04:78:C2:9C:00:80
authorityInfoAccess
  • CA Issuers - URI:http://e7.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e7.c.lencr.org/80.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Apr 22 09:50:25.619 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:9C:F6:EC:AD:CC:97:F4:70:B0:34:D7:
  • 4A:0F:45:11:A9:21:59:AB:28:27:24:88:FD:65:0D:21:
  • 14:C6:96:01:EC:02:20:5D:0B:55:84:82:5E:CE:4D:6C:
  • 3D:E8:62:28:FB:B3:C5:A1:A7:3C:DC:30:2C:42:2B:EC:
  • 80:93:6A:F7:8E:D2:61
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37:
  • 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23
  • Timestamp : Apr 22 09:50:25.651 2026 GMT
  • Extensions: 00:00:05:00:09:4B:7E:07
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:3C:BF:CF:AF:BB:4A:CA:4B:B1:B4:66:3A:
  • 6B:3E:E9:82:EA:54:B1:4D:C3:63:02:E1:1F:54:B5:68:
  • 2B:D6:A0:B5:02:21:00:FF:63:3C:3E:AD:9B:A7:5F:CE:
  • 32:E4:7A:51:69:A4:A0:BF:1E:A6:63:3B:82:A8:B9:2E:
  • D0:B8:C7:8F:53:71:8D