{ "info": { "_postman_id": "60c3615e-1f65-4950-9f31-d230b11d6f41", "name": "Twilio SendGrid Marketing Campaigns Send Test Email API", "description": "The Twilio SendGrid Test Email API allows you to test a marketing email by first sending it to a list of up to 10 email addresses before pushing to a contact list or segment. With this feature, you can test the layout and content of your message in multiple email clients and with multiple recipients to see how it will function in a real-world scenario.\n\nContact Support:\n Name: Twilio SendGrid Support", "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json", "createdAt": "2026-06-05T15:17:38.000Z", "updatedAt": "2026-06-05T15:17:38.000Z", "lastUpdatedBy": "35240", "uid": "35240-60c3615e-1f65-4950-9f31-d230b11d6f41" }, "item": [ { "name": "v3", "item": [ { "name": "marketing", "item": [ { "name": "test", "item": [ { "name": "send_email", "item": [ { "name": "Send a Test Marketing Email", "id": "abebf97d-2871-4759-addd-32e108b721b9", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "POST", "header": [ { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" } ], "body": { "mode": "raw", "raw": "{\n \"template_id\": \"\",\n \"emails\": [\n \"\"\n ],\n \"version_id_override\": \"\",\n \"sender_id\": \"\",\n \"custom_unsubscribe_url\": \"\",\n \"suppression_group_id\": \"\",\n \"from_address\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/v3/marketing/test/send_email", "host": [ "{{baseUrl}}" ], "path": [ "v3", "marketing", "test", "send_email" ] }, "description": "**This endpoint allows you to send a test marketing email to a list of email addresses**.\n\nBefore sending a marketing message, you can test it using this endpoint. You may specify up to **10 contacts** in the `emails` request body field. You must also specify a `template_id` and include either a `from_address` or `sender_id`. You can manage your templates with the [Twilio SendGrid App](https://mc.sendgrid.com/dynamic-templates) or the [Transactional Templates API](https://docs.sendgrid.com/api-reference/transactional-templates).\n\n> Please note that this endpoint works with Dynamic Transactional Templates only. Legacy Transactional Templates will not be delivered.\n\nFor more information about managing Dynamic Transactional Templates, see [How to Send Email with Dynamic Transactional Templates](https://sendgrid.com/docs/ui/sending-email/how-to-send-an-email-with-dynamic-transactional-templates/).\n\nYou can also test your Single Sends in the [Twilio SendGrid Marketing Campaigns UI](https://mc.sendgrid.com/single-sends)." }, "response": [ { "id": "efa253b3-4b35-409a-b8a7-7eb91cd8b8fb", "name": "response", "originalRequest": { "method": "POST", "header": [ { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" }, { "description": "Added as a part of security scheme: bearer", "key": "Authorization", "value": "Bearer " } ], "body": { "mode": "raw", "raw": "{\n \"template_id\": \"\",\n \"emails\": [\n \"\"\n ],\n \"version_id_override\": \"\",\n \"sender_id\": \"\",\n \"custom_unsubscribe_url\": \"\",\n \"suppression_group_id\": \"\",\n \"from_address\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/v3/marketing/test/send_email", "host": [ "{{baseUrl}}" ], "path": [ "v3", "marketing", "test", "send_email" ] } }, "status": "Accepted", "code": 202, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "{}", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-efa253b3-4b35-409a-b8a7-7eb91cd8b8fb" }, { "id": "abdabae5-6ac4-4de7-afd5-7c76b32c03d6", "name": "response", "originalRequest": { "method": "POST", "header": [ { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" }, { "description": "Added as a part of security scheme: bearer", "key": "Authorization", "value": "Bearer " } ], "body": { "mode": "raw", "raw": "{\n \"template_id\": \"\",\n \"emails\": [\n \"\"\n ],\n \"version_id_override\": \"\",\n \"sender_id\": \"\",\n \"custom_unsubscribe_url\": \"\",\n \"suppression_group_id\": \"\",\n \"from_address\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/v3/marketing/test/send_email", "host": [ "{{baseUrl}}" ], "path": [ "v3", "marketing", "test", "send_email" ] } }, "status": "Bad Request", "code": 400, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "{\n \"errors\": [\n {\n \"message\": \"\",\n \"field\": \"\",\n \"help\": {}\n },\n {\n \"message\": \"\",\n \"field\": \"\",\n \"help\": {}\n }\n ],\n \"id\": \"\"\n}", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-abdabae5-6ac4-4de7-afd5-7c76b32c03d6" } ], "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-abebf97d-2871-4759-addd-32e108b721b9" } ], "id": "53e87dba-d326-42d7-8ccf-e22923424e88", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-53e87dba-d326-42d7-8ccf-e22923424e88" } ], "id": "85f4d591-adff-4214-bdd5-399749a8b953", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-85f4d591-adff-4214-bdd5-399749a8b953" } ], "id": "d26ce08a-1b7c-4f5e-8c74-46045be93ea5", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-d26ce08a-1b7c-4f5e-8c74-46045be93ea5" } ], "id": "2c88635d-9195-4f3b-852c-fed4cb6c0147", "createdAt": "2026-06-05T15:17:39.000Z", "updatedAt": "2026-06-05T15:17:39.000Z", "uid": "35240-2c88635d-9195-4f3b-852c-fed4cb6c0147" } ], "auth": { "type": "bearer", "bearer": [ { "key": "token", "value": "{{bearerToken}}", "type": "string" } ] }, "variable": [ { "key": "baseUrl", "value": "https://api.sendgrid.com" } ] }