SSL check results of smtp.in-ulm.de

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Discover if the mail servers for smtp.in-ulm.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

Report created Tue, 04 Aug 2020 06:12:59 +0000

The mailservers of smtp.in-ulm.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.in-ulm.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.in-ulm.de
217.10.8.16
-
supported
in-ulm.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @smtp.in-ulm.de address so far. Test mail delivery

Certificates

First seen at:

CN=in-ulm.de

Certificate chain
Subject
Common Name (CN)
  • in-ulm.de
Alternative Names
  • *.in-ulm.de
  • in-ulm.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-07-11
Not valid after
2020-10-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3C:E0:5A:62:9F:5B:5D:E7:10:BF:AB:49:83:C5:EC:AB:FC:35:C1:E9:A2:04:8A:72:F9:CF:8F:C2:60:BF:58:40
SHA1
FE:4E:3F:61:55:7F:4B:F2:A4:EB:E8:5B:E6:C9:7D:3F:EE:04:EC:7B
X509v3 extensions
subjectKeyIdentifier
  • 6D:93:DE:9E:71:EB:72:A2:CB:D7:9A:AA:94:BE:77:63:54:D4:87:20
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 : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Jul 11 11:16:10.447 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:77:43:36:A5:12:6B:AA:4E:54:5D:74:E9:
  • 23:26:D8:C9:1C:76:60:9F:CF:E3:98:11:A0:5C:03:DB:
  • 65:6C:B2:4F:02:21:00:8A:68:92:C1:F8:B1:C1:93:83:
  • 2C:A1:45:C1:53:0D:E6:8C:88:EF:0F:C3:2C:BE:EE:BE:
  • D1:D8:F9:51:35:7B:C7
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Jul 11 11:16:10.470 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D1:BC:C3:04:47:9F:9F:9C:55:6A:9B:
  • E1:22:BC:A7:34:44:13:D2:33:1B:FB:B3:6C:97:3D:BF:
  • 11:34:90:87:15:02:20:7D:4C:95:B1:3E:B6:C9:C7:3E:
  • AA:E3:51:9A:76:8B:AF:AB:0A:9C:DA:91:D1:A6:6E:8B:
  • 96:2B:2E:3D:C3:E1:24

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.smtp.in-ulm.de
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-256 Hash
valid
valid