554 Blocked - see https://ipcheck.proofpoint.com/?ip=224.137.0.68
250-mx0a-002c1b01.pphosted.com Hello [224.137.0.68], pleased to meet you
250 ENHANCEDSTATUSCODES

HTTP/1.1 403 Forbidden
Date: Wed, 08 Jan 2025 19:15:00 GMT
Server:  
Strict-Transport-Security: max-age=31536000; includeSubDomains
Last-Modified: Wed, 28 Feb 2024 04:23:53 GMT
ETag: "898-6126982a54840"
Accept-Ranges: bytes
Content-Length: 2200
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Expect-CT: max-age=86400, enforce
Content-Security-Policy: script-src 'self' 'unsafe-inline' 'unsafe-eval'; object-src 'self'
Content-Type: text/html; charset=UTF-8