SSL-Tools

SSL check results of imst.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for imst.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 Mon, 15 Dec 2025 13:51:36 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx0.imst.de
195.243.247.247
 10
supported
mx0.imst.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail.imst.de
195.243.247.110
 15
supported
mail.imst.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s
mxbackup.imst.de
94.79.138.147
Results incomplete
50 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx0.imst.de

Certificate chain
  • mx0.imst.de
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E7
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx0.imst.de
Alternative Names
  • mx0.imst.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E7
validity period
Not valid before
2025-11-13
Not valid after
2026-02-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
85:4E:0B:03:14:C7:24:F5:5E:8C:B8:2F:AC:57:0F:EB:54:08:47:AC:50:A3:A6:EF:BE:B9:C5:59:B2:91:FB:D8
SHA1
3C:A1:95:A3:35:EE:74:A4:9C:2D:12:FF:7D:3A:BC:57:A9:C3:40:28
X509v3 extensions
subjectKeyIdentifier
  • B3:C6:20:D9:05:C2:A9:6D:F8:1A:90:E3:E2:24:A1:52:22:6D:34:30
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/65.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 : Nov 13 02:34:34.081 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DB:5D:D3:1D:39:88:CB:1A:E8:33:E5:
  • 0D:49:55:7B:AF:29:43:A7:F2:2F:5F:65:1E:2D:80:7D:
  • 8D:E7:36:D4:2B:02:20:29:0A:B6:8A:F6:43:B5:02:95:
  • FC:7C:74:F1:63:FD:A7:AE:74:39:02:6E:07:58:1F:F0:
  • 03:98:FE:81:EC:88:F1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
  • F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
  • Timestamp : Nov 13 02:34:34.098 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E5:DE:50:89:F6:F9:A7:93:F8:86:E1:
  • 59:BF:88:3D:8C:ED:B7:26:18:93:E5:88:06:08:45:0E:
  • F6:90:A1:2E:2C:02:21:00:B7:00:91:F9:15:C9:D3:A7:
  • 06:F8:6A:0C:5A:04:30:EA:51:6F:09:12:40:92:C5:E2:
  • 73:05:78:D6:92:B5:9B:93
First seen at:

CN=mail.imst.de

Certificate chain
  • mail.imst.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R13
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.imst.de
Alternative Names
  • mail.imst.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R13
validity period
Not valid before
2025-11-13
Not valid after
2026-02-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
03:F5:32:AD:44:F6:2D:D4:E9:4D:12:48:46:FB:58:8E:10:F5:B8:FC:1C:11:FC:ED:82:68:EC:C4:51:F9:CE:74
SHA1
24:C5:7E:90:80:3D:CA:88:34:C3:A8:3A:F6:CA:5F:B5:D7:35:23:6B
X509v3 extensions
subjectKeyIdentifier
  • 98:76:57:0B:DE:CF:A0:F9:A9:F6:D6:4B:3B:E2:5B:8E:20:77:5D:F4
authorityKeyIdentifier
  • keyid:E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
authorityInfoAccess
  • CA Issuers - URI:http://r13.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r13.c.lencr.org/36.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
  • F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
  • Timestamp : Nov 13 02:34:10.338 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1D:D2:81:53:81:14:E0:35:B0:D8:92:CC:
  • 1B:24:13:6A:6A:4F:0B:17:5A:A1:A8:BA:C2:16:CD:F6:
  • 60:95:BA:16:02:21:00:88:29:71:08:E0:D4:43:F6:9E:
  • 91:10:8A:05:12:E5:D7:C0:33:2F:51:56:93:3E:D4:F7:
  • 7A:53:D3:2F:4C:5B:F1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:86:D4:C7:28:AA:6F:FE:BA:03:6F:78:2A:4D:01:91:
  • AA:CE:2D:72:31:0F:AE:CE:5D:70:41:2D:25:4C:C7:D4
  • Timestamp : Nov 13 02:34:10.326 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A2:6A:84:84:97:04:38:28:91:F3:BE:
  • 8C:38:E1:45:60:B9:F0:19:0F:DD:41:39:B5:FA:3C:CF:
  • EB:06:CC:1C:22:02:21:00:CA:5F:34:1E:E8:D2:8C:67:
  • C7:62:D1:BA:FB:82:EE:AA:3D:46:52:49:14:D3:1D:11:
  • E6:C2:71:54:C7:AA:FA:3C