SSL check results of strato.de

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Discover if the mail servers for strato.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 Thu, 07 Dec 2023 08:21:45 +0000

The mailservers of strato.de can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
post.in.strato.de
192.166.192.189
100
supported
*.in.strato.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
post14.in.strato.de
217.74.205.128
200
supported
*.in.strato.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @strato.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mail-ej1-x635.google.com (IPv6:2a00:1450:4864:20::635)
TLSv1.3 TLS_AES_128_GCM_SHA256
mail-ej1-x62f.google.com (IPv6:2a00:1450:4864:20::62f)
TLSv1.3 TLS_AES_128_GCM_SHA256
mail-wr1-x435.google.com (IPv6:2a00:1450:4864:20::435)
TLSv1.3 TLS_AES_128_GCM_SHA256

Certificates

First seen at:

CN=*.in.strato.de,O=Strato AG,L=Berlin,ST=Berlin,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Berlin
Locality (L)
  • Berlin
Organization (O)
  • Strato AG
Common Name (CN)
  • *.in.strato.de
Alternative Names
  • *.in.strato.de
  • IN.STRATO.DE
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • GeoTrust TLS RSA CA G1
validity period
Not valid before
2023-03-28
Not valid after
2024-04-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
62:7C:2F:7C:CA:DA:9D:45:3D:99:59:94:F6:FD:0E:3D:78:83:5A:F7:0B:0B:39:52:EB:5A:50:02:55:72:F0:8C
SHA1
63:BA:FF:E1:D9:B7:84:E7:C8:98:36:14:AA:3F:57:60:C3:70:89:F3
X509v3 extensions
authorityKeyIdentifier
  • keyid:94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
  • 65:54:1F:9B:09:FE:52:8F:BB:8D:E4:A9:9A:61:C1:77:E2:DC:DE:B7
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://status.geotrust.com
  • CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Mar 28 10:05:41.768 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:53:98:16:74:0B:E9:97:68:16:2A:A0:6E:
  • 46:DE:52:9C:0E:B0:57:C0:F9:80:D3:75:EF:9D:01:E0:
  • D5:4D:8D:20:02:20:0F:A9:59:87:8C:7D:F8:0A:86:51:
  • 58:65:B2:2F:EA:8A:4D:26:CB:A1:F1:51:23:72:5F:45:
  • 5A:B4:12:09:20:09
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 73:D9:9E:89:1B:4C:96:78:A0:20:7D:47:9D:E6:B2:C6:
  • 1C:D0:51:5E:71:19:2A:8C:6B:80:10:7A:C1:77:72:B5
  • Timestamp : Mar 28 10:05:41.770 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F7:C9:6C:58:6A:89:E4:EC:08:EA:2F:
  • 81:88:79:20:0B:FE:7F:6A:E5:50:1A:FC:1D:B4:65:0E:
  • ED:80:D4:CF:E0:02:20:5A:A9:84:14:3F:9F:C9:2A:A0:
  • BC:0A:5E:6F:B3:B1:60:B1:2E:6B:02:D8:C8:1B:0D:F4:
  • A2:47:4B:0A:AE:57:37
  • 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 : Mar 28 10:05:41.699 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:EE:E7:8F:89:5A:D7:88:47:4E:D2:CA:
  • 1C:EF:9D:C0:13:5A:C5:01:2C:67:8F:C9:5C:75:4E:4A:
  • 30:4F:4C:55:1F:02:21:00:AB:BA:59:E9:EB:8A:2D:A8:
  • B4:F5:EB:F1:E7:7D:2B:90:30:B4:7C:A8:D2:22:3B:50:
  • FE:38:53:CF:86:13:C0:75