SSL-Tools

SSL check results of sow.de

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Discover if the mail servers for sow.de 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 Wed, 17 Sep 2025 18:03:58 +0000

We can not guarantee a secure connection to the mailservers of sow.de!

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

/mailservers/sow.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @sow.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
email.uniserve.de
217.117.111.131
 10
supported
email.uniserve.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
email.uniserve.de
217.117.111.34
 10
supported
email.uniserve.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
email.uniserve.de
217.117.111.30
 10
supported
email.uniserve.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mx1.uniserve.de
217.117.111.131
 20
supported
email.uniserve.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mxbackup.uniserve.de
217.117.111.38
Results incomplete
30
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=email.uniserve.de

Certificate chain
Subject
Common Name (CN)
  • email.uniserve.de
Alternative Names
  • email.uniserve.de
  • www.email.uniserve.de
Issuer
Country (C)
  • GB
Organization (O)
  • Sectigo Limited
Common Name (CN)
  • Sectigo Public Server Authentication CA DV R36
validity period
Not valid before
2025-09-10
Not valid after
2026-09-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
2F:DE:5B:7B:01:26:89:12:23:E1:CD:41:E3:E4:19:DC:14:A1:F3:1F:FC:1F:DD:B0:C0:BA:E2:54:E1:B8:86:D4
SHA1
07:79:CB:D8:20:28:39:5C:16:CA:8D:D4:37:D6:B0:63:1D:64:EA:29
X509v3 extensions
authorityKeyIdentifier
  • keyid:68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
  • BF:F1:31:DD:1B:E2:9B:B9:0C:AD:44:09:C2:05:95:E1:4C:B6:78:47
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.2.7
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt
  • OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
  • B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
  • Timestamp : Sep 10 09:57:03.812 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1D:9F:21:B8:33:61:16:9F:43:B1:FA:7C:
  • F0:89:9E:C9:3F:04:22:AC:14:DD:0B:34:C4:B0:73:C5:
  • C4:AD:DE:E5:02:21:00:C4:25:BA:65:C8:C5:97:50:7A:
  • E4:A8:7A:8D:5B:F4:D4:B4:83:F0:C2:27:97:F8:68:FB:
  • 54:CF:44:C1:88:79:B5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11:
  • 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3
  • Timestamp : Sep 10 09:57:03.749 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0F:57:1A:83:23:54:73:EF:93:A5:8D:85:
  • E7:02:3D:17:DC:34:D3:71:FD:C9:9F:E1:86:22:6B:D6:
  • 6D:93:81:55:02:20:1F:AF:4F:E5:8D:7C:A4:51:7A:A5:
  • 6D:6E:CC:AF:11:17:6D:AE:AD:11:77:39:69:AE:4B:EF:
  • DA:75:E5:51:66:10
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Sep 10 09:57:03.753 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6D:AF:DB:53:EA:D7:EF:EF:9D:AC:AB:17:
  • 7A:FB:C1:59:6B:59:FF:B2:D2:93:E9:1C:01:EC:84:EE:
  • 7E:E5:E7:99:02:21:00:BD:28:CD:5C:16:D5:7F:87:6E:
  • 79:CB:F9:00:8C:0A:56:9F:FE:57:38:EB:F3:42:C2:E7:
  • B9:2F:EB:C9:24:E6:83