401
Array
(
    [0] => HTTP/1.1 401 Unauthorized
    [1] => Date: Sun, 04 Oct 2026 12:08:07 GMT
    [2] => Content-Type: application/json
    [3] => Content-Length: 76
    [4] => Connection: keep-alive
    [5] => Access-Control-Allow-Headers: Authorization, Content-Type, On-behalf-of, x-sg-elas-acl
    [6] => Access-Control-Allow-Methods: POST
    [7] => Access-Control-Allow-Origin: https://sendgrid.api-docs.io
    [8] => Access-Control-Max-Age: 600
    [9] => Cache-Control: no-cache
    [10] => Content-Security-Policy: frame-ancestors 'none'
    [11] => Referrer-Policy: strict-origin-when-cross-origin
    [12] => Strict-Transport-Security: max-age=31536000; includeSubDomains
    [13] => X-Content-Type-Options: nosniff
    [14] => X-No-Cors-Reason: https://sendgrid.com/docs/Classroom/Basics/API/cors.html
    [15] => 
    [16] => 
)
{"errors":[{"message":"Maximum credits exceeded","field":null,"help":null}]}
403
Array
(
    [0] => HTTP/1.1 403 Forbidden
    [1] => Date: Sun, 04 Oct 2026 12:08:08 GMT
    [2] => Content-Type: application/json
    [3] => Content-Length: 210
    [4] => Connection: keep-alive
    [5] => Server: nginx
    [6] => x-amzn-requestid: 0f8bcdac-f9f2-44fb-8b1a-99fa4a325241
    [7] => x-amzn-remapped-x-amzn-requestid: 0ea6a774-d471-4f45-9e41-77de555aa94f
    [8] => x-amzn-remapped-content-length: 210
    [9] => x-sendgrid-pod-id: 0
    [10] => x-amz-apigw-id: Et8yTG15IAMERKw=
    [11] => x-amzn-trace-id: Root=1-6ac241a8-51705524217b2d847d874961;Parent=55a7db8fe869ff61;Sampled=0;Lineage=1:5cb8ea5c:0
    [12] => x-amzn-remapped-date: Sun, 04 Oct 2026 12:08:08 GMT
    [13] => x-sendgrid-podrouter-region: us-east-1
    [14] => x-envoy-upstream-service-time: 436
    [15] => strict-transport-security: max-age=31536000; includeSubDomains
    [16] => content-security-policy: frame-ancestors 'none'
    [17] => cache-control: no-store
    [18] => referrer-policy: strict-origin-when-cross-origin
    [19] => x-content-type-options: nosniff
    [20] => x-ratelimit-remaining: 599
    [21] => x-ratelimit-reset: 53
    [22] => x-ratelimit-limit: 600
    [23] => 
    [24] => 
)
{"errors":[{"message":"access forbidden. please ensure you have the correct scopes defined. see https://docs.sendgrid.com/api-reference/how-to-use-the-sendgrid-v3-api/authorization#api-key-permissions-list"}]}

<form name="newsLetter" action="" method="post"><input type="submit" name="newsletters" value="create Template"></form>