SSL check results of wotringer.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for wotringer.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

Report created Tue, 28 Oct 2025 20:18:58 +0000

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

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

/mailservers/wotringer.com

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
pmg.hz00.wotringer.com
fd7a:115c:a1e0::2434:6567
Results incomplete
100 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
pmg.hz00.wotringer.com
2a01:4f8:121:3167::b23f:4fd5
Results incomplete
100
unsupported
not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
pmg.hz00.wotringer.com
178.63.79.213
Results incomplete
100
unsupported
not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
pmg.hz00.wotringer.com
100.108.101.103
Results incomplete
100 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mailcow.hz00.wotringer.com
2a01:4f8:121:3167::b23f:4fe4
200
supported
mailcow.hz00.wotringer.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
6 s
mailcow.hz00.wotringer.com
fd7a:115c:a1e0::e534:8058
Results incomplete
200 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mailcow.hz00.wotringer.com
100.108.128.88
Results incomplete
200 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mailcow.hz00.wotringer.com
178.63.79.228
200
supported
mailcow.hz00.wotringer.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
6 s

Outgoing Mails

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

Certificates

First seen at:

CN=mailcow.hz00.wotringer.com

Certificate chain
  • mailcow.hz00.wotringer.com
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption

      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption

Subject
Common Name (CN)
  • mailcow.hz00.wotringer.com
Alternative Names
  • autoconfig.hz2814884.wotringer.com
  • autoconfig.wotringer.com
  • autodiscover.hz2814884.wotringer.com
  • autodiscover.wotringer.com
  • mailcow.hz00.wotringer.com
  • mta-sts.hz2814884.wotringer.com
  • mta-sts.wotringer.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2025-10-28
Not valid after
2026-01-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A4:AD:79:FE:61:6A:20:86:78:16:12:BE:E6:B4:30:78:A0:62:7F:90:AB:01:10:06:1E:80:9D:7A:09:C7:1A:14
SHA1
8D:65:EB:82:C8:9B:C0:3C:BD:44:0C:E4:5D:27:B5:BC:B4:C8:FD:57
X509v3 extensions
subjectKeyIdentifier
  • FA:E3:1C:5C:EA:CC:86:D1:35:74:DA:2B:F9:D7:EF:21:B0:48:E3:8E
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/64.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8:
  • 5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3
  • Timestamp : Oct 28 14:58:36.353 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:79:67:12:80:6F:74:65:5E:CB:71:11:14:
  • 8C:72:FF:AB:18:F9:B8:AE:85:E6:20:6A:84:8D:2D:46:
  • A0:BB:52:F0:02:21:00:EE:15:8F:6D:03:90:60:AE:42:
  • 26:53:68:22:5B:1A:B0:E8:84:E6:BB:78:65:12:E3:D0:
  • 7B:D5:54:B7:56:AD:1A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77:
  • E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6
  • Timestamp : Oct 28 14:58:36.428 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:0F:25:26:A6:97:B3:F8:BA:6A:C0:49:EE:
  • 9D:27:C5:22:92:02:CF:94:C6:21:22:E1:7D:5A:7B:D1:
  • 04:2F:55:DE:02:21:00:C6:19:F2:C6:27:CF:84:43:DF:
  • 2B:D8:D6:BC:C1:77:FC:D7:CD:F9:C6:D1:10:52:28:10:
  • 51:DB:C4:27:62:9E:7A

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.pmg.hz00.wotringer.com
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
_25._tcp.mailcow.hz00.wotringer.com
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid