401
Array
(
    [0] => HTTP/1.1 401 Unauthorized
    [1] => Server: nginx
    [2] => Date: Sun, 16 Mar 2025 02:17:47 GMT
    [3] => Content-Type: application/json
    [4] => Content-Length: 62
    [5] => Connection: keep-alive
    [6] => access-control-allow-methods: POST, OPTIONS
    [7] => access-control-max-age: 21600
    [8] => access-control-expose-headers: Link, Location
    [9] => access-control-allow-origin: *
    [10] => access-control-allow-headers: AUTHORIZATION, Content-Type, On-behalf-of, x-sg-elas-acl, X-Recaptcha, X-Request-Source, Browser-Fingerprint
    [11] => content-security-policy: default-src https://api.sendgrid.com; frame-src 'none'; object-src 'none'
    [12] => x-content-type-options: nosniff
    [13] => strict-transport-security: max-age=31536000
    [14] => x-robots-tag: noindex, nofollow
    [15] => twilio-request-id: RQ2uNaQChrtVjpsL2fHh2FN48JZVR
    [16] => x-envoy-upstream-service-time: 96
    [17] => Cache-Control: no-cache
    [18] => Referrer-Policy: strict-origin-when-cross-origin
    [19] => 
    [20] => 
)
{"errors":[{"field":null,"message":"authorization required"}]}
401
Array
(
    [0] => HTTP/1.1 401 Unauthorized
    [1] => Server: nginx
    [2] => Date: Sun, 16 Mar 2025 02:17:48 GMT
    [3] => Content-Type: application/json
    [4] => Content-Length: 62
    [5] => Connection: keep-alive
    [6] => access-control-allow-methods: HEAD, OPTIONS, GET
    [7] => access-control-max-age: 21600
    [8] => access-control-expose-headers: Link, Location
    [9] => access-control-allow-origin: *
    [10] => access-control-allow-headers: AUTHORIZATION, Content-Type, On-behalf-of, x-sg-elas-acl, X-Recaptcha, X-Request-Source, Browser-Fingerprint
    [11] => content-security-policy: default-src https://api.sendgrid.com; frame-src 'none'; object-src 'none'
    [12] => x-content-type-options: nosniff
    [13] => strict-transport-security: max-age=31536000
    [14] => x-robots-tag: noindex, nofollow
    [15] => twilio-request-id: RQ2uNaQM4eitsSlIwJ7S8xAzOgAoU
    [16] => x-envoy-upstream-service-time: 58
    [17] => Cache-Control: no-cache
    [18] => Referrer-Policy: strict-origin-when-cross-origin
    [19] => 
    [20] => 
)
{"errors":[{"field":null,"message":"authorization required"}]}
401
Array
(
    [0] => HTTP/1.1 100 Continue
    [1] => 
    [2] => HTTP/1.1 401 Unauthorized
    [3] => Server: nginx
    [4] => Date: Sun, 16 Mar 2025 02:17:48 GMT
    [5] => Content-Type: application/json
    [6] => Content-Length: 88
    [7] => Connection: keep-alive
    [8] => Access-Control-Allow-Origin: https://sendgrid.api-docs.io
    [9] => Access-Control-Allow-Methods: POST
    [10] => Access-Control-Allow-Headers: Authorization, Content-Type, On-behalf-of, x-sg-elas-acl
    [11] => Access-Control-Max-Age: 600
    [12] => X-No-CORS-Reason: https://sendgrid.com/docs/Classroom/Basics/API/cors.html
    [13] => Strict-Transport-Security: max-age=31536000; includeSubDomains
    [14] => Content-Security-Policy: frame-ancestors 'none'
    [15] => Cache-Control: no-cache
    [16] => X-Content-Type-Options: no-sniff
    [17] => Referrer-Policy: strict-origin-when-cross-origin
    [18] => 
    [19] => 
)
{"errors":[{"message":"Permission denied, wrong credentials","field":null,"help":null}]}