SSL-Tools

SSL check results of smtp.ionos.co.uk

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Discover if the mail servers for smtp.ionos.co.uk 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 Tue, 15 Apr 2025 12:59:30 +0000

The mailservers of smtp.ionos.co.uk can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.ionos.co.uk addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.ionos.co.uk
213.165.67.99
 -
supported
smtp.ionos.co.uk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
smtp.ionos.co.uk
213.165.67.115
 -
supported
smtp.ionos.co.uk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @smtp.ionos.co.uk address so far. Test mail delivery

Certificates

First seen at:

CN=smtp.ionos.co.uk,O=IONOS SE,L=Montabaur,ST=Rheinland-Pfalz,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Rheinland-Pfalz
Locality (L)
  • Montabaur
Organization (O)
  • IONOS SE
Common Name (CN)
  • smtp.ionos.co.uk
Alternative Names
  • smtp.ionos.co.uk
  • pop.ionos.co.uk
  • imap.ionos.co.uk
  • pop.1and1.co.uk
  • imap.1and1.co.uk
  • auth.smtp.1and1.co.uk
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
2024-09-26
Not valid after
2025-10-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C7:9C:E3:DC:C5:EF:60:2F:A3:4C:C3:DB:93:26:33:35:F5:78:3C:94:14:DA:88:0F:DC:39:7E:E5:0E:BB:B1:4B
SHA1
75:5C:DB:10:A7:A7:4F:A6:C3:FC:35:36:B6:62:43:26:23:45:A8:D5
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
  • CF:3F:BF:4F:98:FE:97:E5:4E:54:92:03:9E:39:B7:1C:5D:86:C6:B2
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
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 : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : Sep 26 10:16:17.508 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8F:5C:92:7B:F1:3C:9A:82:60:A0:58:
  • B9:F9:3A:77:21:FD:C8:E6:FE:EE:B7:B5:EC:4E:71:F0:
  • D4:9F:D7:03:82:02:20:5D:72:5B:FB:01:E8:FB:5D:C9:
  • 0C:EC:54:6C:ED:BA:29:A8:E5:A7:86:CF:E6:7D:0F:1C:
  • 66:FE:EA:D8:2A:87:EC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : Sep 26 10:16:17.572 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B2:E3:E1:F1:D8:76:36:DC:35:D1:48:
  • EC:E1:60:DB:BC:C8:74:CC:2F:68:44:14:7D:A1:F4:91:
  • BA:60:AD:08:72:02:21:00:A2:8F:E3:3C:93:F2:C7:3F:
  • 40:DB:7F:1C:22:15:D4:12:24:F0:DB:92:6A:27:4C:77:
  • 98:5F:1A:DF:E2:58:8E:0C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Sep 26 10:16:17.556 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:43:20:09:5F:82:D4:31:A9:F6:03:AC:82:
  • F5:38:98:22:1F:E1:24:A1:5B:07:C2:7B:57:12:24:A7:
  • BB:B3:30:13:02:21:00:B3:10:1B:CD:2B:39:E1:77:89:
  • 26:BD:F8:B5:FF:ED:40:72:28:22:E3:D3:31:6B:2B:BC:
  • 2A:05:9B:94:A6:6C:F2